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3. 判断下列句子中的平行结构是否正确 Driving less frequently is one way to save energy; to turn off all appliances when they are not being used is another.
参考答案和解析
My cousin picks the berries, boxes them and sells them to the markets.;She is an expert on caring for trees, indoor plants, and lawns.
更多 “3. 判断下列句子中的平行结构是否正确 Driving less frequently is one way to save energy; to turn off all appliances when they are not being used is another.” 相关考题
考题
All of us avoidedover the rough road bythe new way.
A.to drive … takingB.driving … takesC.driving … being takenD.driving … taking
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Smart WindowWindows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch."It took us a long time to figure out what a window really is," says Claes Granqvist. He's a professor of solid-state physics at Uppsala University in Sweden. "It's contact with the outside world. You have to have visual contact with the surrounding world to feel well. " So, windows and natural light are important for improving the way people feel when they're stuck indoors.Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it's hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world.Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color.Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage is decreased, the window darkens until it's completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark.One important feature that makes a smart window so smart is that it has a sort of "memory. " All it takes is a small jolt of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take anywhere from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different. "Which of the following statements does not indicate the importance of windows as described in the first two paragraphs?A．Windows can change from clear to dark to save energy.B．Windows help to save energy by letting light in.C．Windows help to save energy by providing heat.D．Windows enable people to have contact with the outside world.
考题
Which one of the followings is not a right way to behave during mooring unmooring operation?—_______.A.Stay close to the towline at all timeB.Beware the bightsC.When operating the winch/windlass,ensure that yourself understand the controlsD.When the tug is being secured or let go, monitor the operation closely
考题
A jack-up drilling rig being towed must ______.A.turn off all lights that interfere with the navigation lightsB.turn on all available working lights on deckC.ring the bell rapidly for five seconds once a minuteD.display two black diamonds in a vertical line during the day
考题
Why is gas-freeing rarely required for LPG cargo tanks?A.LPG is compatible with all cargosB.LPG's high oxygen content makes it nonvolatileC.Cargo tanks are inspected less frequently than on oil tankersD.The cargo tanks are used for one type of cargo only
考题
The lockmaster has given you permission to tie off on the lower guide wall to wait your turn to lock through．What should you be most concerned with ________．A.A downbound vesselB.An upbound vesselC.Current reaction when the lock chamber is being emptiedD.Current reaction when the lock chamber is being filled
考题
共用题干
Electromagnetic Energy1 White light seems to be a combination of all colors.The energy that comes from a source of light is not limited to the kind of energy you can see.Heat is given off by a flame or an electric light.On a cloudy day it is possible to get a sunburn even though you feel cool.Visible light and the kinds of energy that produce warmth and sunburn are examples of electromagnetic energy.2 The sun is 93 million miles from the earth.Yet we can use energy from the sun because electromagnetic energy travels through space.3 Many other kinds of energy are also types of electromagnetic energy.Radio,television,and radar signals travel from transmitters to receivers as low-energy electromagnetic waves.Infrared（红外线的）radiation is an electromagnetic wave.When it is absorbed by matter,heat is produced.Waves of infrared and visible light have more energy than waves of radio,television,or radar.Ultraviolet rays（紫外线）and X-rays are electromagnetic waves with even greater amounts of energy.Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living.Ultraviolet radiation is useful in killing certain disease organisms.X-rays and gamma rays have so much energy that they travel through solid objects. They can be used to detect and treat cancer.X-rays are used in industry to find hidden cracks in metal,and in medicine to reveal broken bones.4 Usually we use electricity to generate electromagnetic energy.The source of most of our energy is the sun.Heat from the sun causes water to evaporate.When the water falls to the earth as rain,some of it is trapped behind dams and then used to operate electric generators.Other generators are powered by coal,but the energy stored in coal came from the sun,too.5 Until recently,the source of the tremendous amount of energy given off by the sun was a puzzle.If the sun depended on chemical reactions,it would have used up all its energy long ago.Experiments with electromagnetic radiation led to the theory that mass can be converted into energy.About forty years after the theory was proposed , nuclear energy was harnessed（利用）by man.Chemical energy comes from electron （电子）rearrangement.Nuclear energy comes from a change in the nucleus of an atom.Compared with chemical reactions,nuclear reactions release millions of times more energy per pound of fuel.We now believe that the sun's energy comes from the nuclear reactions in which hydrogen is changed into helium（氦）.6 Nuclear energy is beginning to compete with coal as an economical source of'power to generate electricity.It is also being used to operate engines in large ships.Scientists continue to seek new and better methods of obtaining and using energy.Chemical energy is generated______. A:when it is absorbed by matterB:when it is cloudyC:because they can pass through solid objectsD:when the sunrays are fierce.E:when a change in the nucleus of an atom takes placeF:when electron rearrangement takes place
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共用题干
Electromagnetic Energy1 White light seems to be a combination of all colors.The energy that comes from a source of light is not limited to the kind of energy you can see.Heat is given off by a flame or an electric light.On a cloudy day it is possible to get a sunburn even though you feel cool.Visible light and the kinds of energy that produce warmth and sunburn are examples of electromagnetic energy.2 The sun is 93 million miles from the earth.Yet we can use energy from the sun because electromagnetic energy travels through space.3 Many other kinds of energy are also types of electromagnetic energy.Radio,television,and radar signals travel from transmitters to receivers as low-energy electromagnetic waves.Infrared（红外线的）radiation is an electromagnetic wave.When it is absorbed by matter,heat is produced.Waves of infrared and visible light have more energy than waves of radio,television,or radar.Ultraviolet rays（紫外线）and X-rays are electromagnetic waves with even greater amounts of energy.Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living.Ultraviolet radiation is useful in killing certain disease organisms.X-rays and gamma rays have so much energy that they travel through solid objects. They can be used to detect and treat cancer.X-rays are used in industry to find hidden cracks in metal,and in medicine to reveal broken bones.4 Usually we use electricity to generate electromagnetic energy.The source of most of our energy is the sun.Heat from the sun causes water to evaporate.When the water falls to the earth as rain,some of it is trapped behind dams and then used to operate electric generators.Other generators are powered by coal,but the energy stored in coal came from the sun,too.5 Until recently,the source of the tremendous amount of energy given off by the sun was a puzzle.If the sun depended on chemical reactions,it would have used up all its energy long ago.Experiments with electromagnetic radiation led to the theory that mass can be converted into energy.About forty years after the theory was proposed , nuclear energy was harnessed（利用）by man.Chemical energy comes from electron （电子）rearrangement.Nuclear energy comes from a change in the nucleus of an atom.Compared with chemical reactions,nuclear reactions release millions of times more energy per pound of fuel.We now believe that the sun's energy comes from the nuclear reactions in which hydrogen is changed into helium（氦）.6 Nuclear energy is beginning to compete with coal as an economical source of'power to generate electricity.It is also being used to operate engines in large ships.Scientists continue to seek new and better methods of obtaining and using energy.One can get a sunburn even______.A:when it is absorbed by matterB:when it is cloudyC:because they can pass through solid objectsD:when the sunrays are fierce.E:when a change in the nucleus of an atom takes placeF:when electron rearrangement takes place
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共用题干
Looking to help the environment?Consider the following simple ideas.Turn off electrical devices when they're not being used.Turning off,rather than leaving on stand-by,things like your TV and computer will save huge amounts of energy. With this,we can all help reduce the amount of carbon dioxide emitted into the earth's atmosphere,thereby reducing pollution and global warming.Share your car.Rather than traveling to work alone,why not arrange car-sharing with one or more of your friends or colleagues?To give you an example,if you drive a fashionable car,you will use more energy in a year than you would leaving your fridge open for seven years,or your TV on for thirty-two years!Imagine the savings if you shared your car with 2,3 or even 4 other people!Refuse junk mail.While we all complain about how much junk mail we get,we very rarely do anything about it. The mail continues to go straight from our letter-boxes into the garbage bin-with 99% of it not even opened.What can you do about this?There are various websites where you can register to receive no junk mail.As well as saving time,you'll also be doing a lot for the environment. Each year,100 million trees are used to produce junk mail. 250,000 homes could be heated with one day's supply of junk mail.There are many other everyday changes you can make to help the environment. They will cost you nothing,and many will actually save you money!Why not give it a try?We can all help, if we really want to. The only drawback of junk mail is that it wastes out time.A: RightB: WrongC: Not mentioned
考题
共用题干
Looking to help the environment?Consider the following simple ideas.Turn off electrical devices when they're not being used.Turning off,rather than leaving on stand-by,things like your TV and computer will save huge amounts of energy. With this,we can all help reduce the amount of carbon dioxide emitted into the earth's atmosphere,thereby reducing pollution and global warming.Share your car.Rather than traveling to work alone,why not arrange car-sharing with one or more of your friends or colleagues?To give you an example,if you drive a fashionable car,you will use more energy in a year than you would leaving your fridge open for seven years,or your TV on for thirty-two years!Imagine the savings if you shared your car with 2,3 or even 4 other people!Refuse junk mail.While we all complain about how much junk mail we get,we very rarely do anything about it. The mail continues to go straight from our letter-boxes into the garbage bin-with 99% of it not even opened.What can you do about this?There are various websites where you can register to receive no junk mail.As well as saving time,you'll also be doing a lot for the environment. Each year,100 million trees are used to produce junk mail. 250,000 homes could be heated with one day's supply of junk mail.There are many other everyday changes you can make to help the environment. They will cost you nothing,and many will actually save you money!Why not give it a try?We can all help, if we really want to. By turning off a TV or computer that's not being used,you will save a lot of energy.A: RightB:WrongC: Not mentioned
考题
共用题干
Looking to help the environment?Consider the following simple ideas.Turn off electrical devices when they're not being used.Turning off,rather than leaving on stand-by,things like your TV and computer will save huge amounts of energy. With this,we can all help reduce the amount of carbon dioxide emitted into the earth's atmosphere,thereby reducing pollution and global warming.Share your car.Rather than traveling to work alone,why not arrange car-sharing with one or more of your friends or colleagues?To give you an example,if you drive a fashionable car,you will use more energy in a year than you would leaving your fridge open for seven years,or your TV on for thirty-two years!Imagine the savings if you shared your car with 2,3 or even 4 other people!Refuse junk mail.While we all complain about how much junk mail we get,we very rarely do anything about it. The mail continues to go straight from our letter-boxes into the garbage bin-with 99% of it not even opened.What can you do about this?There are various websites where you can register to receive no junk mail.As well as saving time,you'll also be doing a lot for the environment. Each year,100 million trees are used to produce junk mail. 250,000 homes could be heated with one day's supply of junk mail.There are many other everyday changes you can make to help the environment. They will cost you nothing,and many will actually save you money!Why not give it a try?We can all help, if we really want to. 99%junk mail is thrown into the garbage bin without being opened.A: RightB:WrongC: Not mentioned
考题
共用题干
Looking to help the environment?Consider the following simple ideas.Turn off electrical devices when they're not being used.Turning off,rather than leaving on stand-by,things like your TV and computer will save huge amounts of energy. With this,we can all help reduce the amount of carbon dioxide emitted into the earth's atmosphere,thereby reducing pollution and global warming.Share your car.Rather than traveling to work alone,why not arrange car-sharing with one or more of your friends or colleagues?To give you an example,if you drive a fashionable car,you will use more energy in a year than you would leaving your fridge open for seven years,or your TV on for thirty-two years!Imagine the savings if you shared your car with 2,3 or even 4 other people!Refuse junk mail.While we all complain about how much junk mail we get,we very rarely do anything about it. The mail continues to go straight from our letter-boxes into the garbage bin-with 99% of it not even opened.What can you do about this?There are various websites where you can register to receive no junk mail.As well as saving time,you'll also be doing a lot for the environment. Each year,100 million trees are used to produce junk mail. 250,000 homes could be heated with one day's supply of junk mail.There are many other everyday changes you can make to help the environment. They will cost you nothing,and many will actually save you money!Why not give it a try?We can all help, if we really want to. We shouldn't buy a car since it wastes so much energy.A:RightB: WrongC: Not mentioned
考题
共用题干
Looking to help the environment?Consider the following simple ideas.Turn off electrical devices when they're not being used.Turning off,rather than leaving on stand-by,things like your TV and computer will save huge amounts of energy. With this,we can all help reduce the amount of carbon dioxide emitted into the earth's atmosphere,thereby reducing pollution and global warming.Share your car.Rather than traveling to work alone,why not arrange car-sharing with one or more of your friends or colleagues?To give you an example,if you drive a fashionable car,you will use more energy in a year than you would leaving your fridge open for seven years,or your TV on for thirty-two years!Imagine the savings if you shared your car with 2,3 or even 4 other people!Refuse junk mail.While we all complain about how much junk mail we get,we very rarely do anything about it. The mail continues to go straight from our letter-boxes into the garbage bin-with 99% of it not even opened.What can you do about this?There are various websites where you can register to receive no junk mail.As well as saving time,you'll also be doing a lot for the environment. Each year,100 million trees are used to produce junk mail. 250,000 homes could be heated with one day's supply of junk mail.There are many other everyday changes you can make to help the environment. They will cost you nothing,and many will actually save you money!Why not give it a try?We can all help, if we really want to. Compared with fridge and TV,driving a car wastes a lot of energy.A: RightB: WrongC: Not mentioned
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共用题干
Save Energy At HomeOn the average,Americans waste as much energy as two-thirds of the world's population consumes.That's largely the_________(1)of driving inefficient cars,using inefficient appliances（设备）,and living and working in poorly insulated（隔热）buildings. Then what can you do to_________(2)the situation?Buy energy-efficient products一Buy new appliances or electronics of the highest energy-efficiency rating.New energy-efficient models may cost more initially,but have a lower operating ___________(3)over their lifetimes.The most energy-efficient models___________(4)the Energy Star label,which identifies products___________(5)use 20 -40 percent less energy than standard new products. According to the EPA（美国环境保护署）,the typical American household can save about $400 per year in___________(6)bills with products that carry the Energy Star.Switch to compact fluorescent bulbs（荧光灯）一Change the three bulbs you use ___________(7)in your house to compact fluorescents.Each compact fluorescent bulb will keep half a ton of CO2 out of the air___________(8)its lifetime.___________(9), compact fluorescent bulbs last ten times as long and can save $30 per year in electricity costs.Set heating and cooling temperatures correctly一Check thermostats（温度自动调节器）in your home to make sure they are___________(10)at a level that doesn't waste energy.Turn off the lights一Turn off lights and other electrical appliances such as televisions and radios when you're not___________(11)them.Install automatic timers for lights that people in your house frequently___________(12)to turn them off when leaving a room.Let the sun shine in一The cheapest and most energy-efficient light and heat source is often right outside your window. On___________(13) days, open blinds（百叶窗）to let the sun light your home for free.Also remember that___________(14)entering a room equals passive solar heating.Even on cold winter days,sun streaming into a room can raise the temperature by several___________(15)._________(2)A:improve B:create C:face D:explain
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共用题干
Save Energy At HomeOn the average,Americans waste as much energy as two-thirds of the world's population consumes.That's largely the_________(1)of driving inefficient cars,using inefficient appliances（设备）,and living and working in poorly insulated（隔热）buildings. Then what can you do to_________(2)the situation?Buy energy-efficient products一Buy new appliances or electronics of the highest energy-efficiency rating.New energy-efficient models may cost more initially,but have a lower operating ___________(3)over their lifetimes.The most energy-efficient models___________(4)the Energy Star label,which identifies products___________(5)use 20 -40 percent less energy than standard new products. According to the EPA（美国环境保护署）,the typical American household can save about $400 per year in___________(6)bills with products that carry the Energy Star.Switch to compact fluorescent bulbs（荧光灯）一Change the three bulbs you use ___________(7)in your house to compact fluorescents.Each compact fluorescent bulb will keep half a ton of CO2 out of the air___________(8)its lifetime.___________(9), compact fluorescent bulbs last ten times as long and can save $30 per year in electricity costs.Set heating and cooling temperatures correctly一Check thermostats（温度自动调节器）in your home to make sure they are___________(10)at a level that doesn't waste energy.Turn off the lights一Turn off lights and other electrical appliances such as televisions and radios when you're not___________(11)them.Install automatic timers for lights that people in your house frequently___________(12)to turn them off when leaving a room.Let the sun shine in一The cheapest and most energy-efficient light and heat source is often right outside your window. On___________(13) days, open blinds（百叶窗）to let the sun light your home for free.Also remember that___________(14)entering a room equals passive solar heating.Even on cold winter days,sun streaming into a room can raise the temperature by several___________(15)._________(7) A:less B:most C:rarely D:seldom
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共用题干
Save Energy At HomeOn the average,Americans waste as much energy as two-thirds of the world's population consumes.That's largely the_________(1)of driving inefficient cars,using inefficient appliances（设备）,and living and working in poorly insulated（隔热）buildings. Then what can you do to_________(2)the situation?Buy energy-efficient products一Buy new appliances or electronics of the highest energy-efficiency rating.New energy-efficient models may cost more initially,but have a lower operating ___________(3)over their lifetimes.The most energy-efficient models___________(4)the Energy Star label,which identifies products___________(5)use 20 -40 percent less energy than standard new products. According to the EPA（美国环境保护署）,the typical American household can save about $400 per year in___________(6)bills with products that carry the Energy Star.Switch to compact fluorescent bulbs（荧光灯）一Change the three bulbs you use ___________(7)in your house to compact fluorescents.Each compact fluorescent bulb will keep half a ton of CO2 out of the air___________(8)its lifetime.___________(9), compact fluorescent bulbs last ten times as long and can save $30 per year in electricity costs.Set heating and cooling temperatures correctly一Check thermostats（温度自动调节器）in your home to make sure they are___________(10)at a level that doesn't waste energy.Turn off the lights一Turn off lights and other electrical appliances such as televisions and radios when you're not___________(11)them.Install automatic timers for lights that people in your house frequently___________(12)to turn them off when leaving a room.Let the sun shine in一The cheapest and most energy-efficient light and heat source is often right outside your window. On___________(13) days, open blinds（百叶窗）to let the sun light your home for free.Also remember that___________(14)entering a room equals passive solar heating.Even on cold winter days,sun streaming into a room can raise the temperature by several___________(15)._________(1)A:power B:result C:way D:work
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共用题干
Save Energy At HomeOn the average,Americans waste as much energy as two-thirds of the world's population consumes.That's largely the_________(1)of driving inefficient cars,using inefficient appliances（设备）,and living and working in poorly insulated（隔热）buildings. Then what can you do to_________(2)the situation?Buy energy-efficient products一Buy new appliances or electronics of the highest energy-efficiency rating.New energy-efficient models may cost more initially,but have a lower operating ___________(3)over their lifetimes.The most energy-efficient models___________(4)the Energy Star label,which identifies products___________(5)use 20 -40 percent less energy than standard new products. According to the EPA（美国环境保护署）,the typical American household can save about $400 per year in___________(6)bills with products that carry the Energy Star.Switch to compact fluorescent bulbs（荧光灯）一Change the three bulbs you use ___________(7)in your house to compact fluorescents.Each compact fluorescent bulb will keep half a ton of CO2 out of the air___________(8)its lifetime.___________(9), compact fluorescent bulbs last ten times as long and can save $30 per year in electricity costs.Set heating and cooling temperatures correctly一Check thermostats（温度自动调节器）in your home to make sure they are___________(10)at a level that doesn't waste energy.Turn off the lights一Turn off lights and other electrical appliances such as televisions and radios when you're not___________(11)them.Install automatic timers for lights that people in your house frequently___________(12)to turn them off when leaving a room.Let the sun shine in一The cheapest and most energy-efficient light and heat source is often right outside your window. On___________(13) days, open blinds（百叶窗）to let the sun light your home for free.Also remember that___________(14)entering a room equals passive solar heating.Even on cold winter days,sun streaming into a room can raise the temperature by several___________(15)._________(6)A:phone B:water C:food D:energy
考题
Which of the following is the MOST important reason for referencing the HCL？（）A、 To ensure that all hardware being used has previously been testedB、 To ensure that all hardware being used has the latest firmwareC、 To ensure that all hardware being used is the most energy efficientD、 To ensure that all hardware being used can be upgraded in the future
考题
A large company has over 500 computers that currently stay powered on indefinitely. None of the systems are used after the company closes at 5 p.m. Which of the following would be the MOST effective way for the company to save on electricity usage？（）A、Set the computers for automatic log-off after one hour of inactivity.B、Institute a policy of either shutdown or sleep mode an hour after close.C、Turn on the Wake on LAN functionality for all computers.D、Schedule all patching to be done during work hours.
考题
You have configured accessibility options for Tom. Everything works fine. When Tom leaves for lunch and returns an hour later， he finds that none of the accessibility options work anymore. What can be done to restore the functionality of his accessibility options？（）A、Turn on FilterKeys, this will allow accessibility options to be turned on at will.B、In accessibility options on the general tab, enable "turn off accessibility features after idle for xx minutes".C、From the Keyboard tab of the accessibility option applet, check the StickyKeys checkbox, this will save all accessibility options when you exit the control panel applet.D、In accessibility options on the general tab, disable "turn off accessibility features after idle for xx minutes".
考题
You have configured accessibility options for Tom. Everything works fine. You want to configure that when Tom wants to use CTRL， ALT or Shift key simultaneously， he should has the option to press one key at a time？ What should you do to provide this feature to Tom？（）A、Turn on FilterKeys, this will allow accessibility options to be turned on at will.B、In accessibility options on the general tab, enable "turn off accessibility features after idle for xx minutes".C、From the Keyboard tab of the accessibility option applet, check the StickyKeys checkbox, this will save all accessibility options when you exit the control panel applet.D、In accessibility options on the general tab, disable "turn off accessibility features after idle for xx minutes".
考题
单选题Why is gas-freeing rarely required for LPG cargo tanks? （）A
LPG is compatible with all cargosB
LPG's high oxygen content makes it nonvolatileC
Cargo tanks are inspected less frequently than on oil tankersD
The cargo tanks are used for one type of cargo only
考题
单选题A large company has over 500 computers that currently stay powered on indefinitely. None of the systems are used after the company closes at 5 p.m. Which of the following would be the MOST effective way for the company to save on electricity usage？（）A
Set the computers for automatic log-off after one hour of inactivity.B
Institute a policy of either shutdown or sleep mode an hour after close.C
Turn on the Wake on LAN functionality for all computers.D
Schedule all patching to be done during work hours.
考题
单选题You have configured accessibility options for Tom. Everything works fine. You want to configure that when Tom wants to use CTRL， ALT or Shift key simultaneously， he should has the option to press one key at a time？ What should you do to provide this feature to Tom？（）A
Turn on FilterKeys, this will allow accessibility options to be turned on at will.B
In accessibility options on the general tab, enable turn off accessibility features after idle for xx minutes.C
From the Keyboard tab of the accessibility option applet, check the StickyKeys checkbox, this will save all accessibility options when you exit the control panel applet.D
In accessibility options on the general tab, disable turn off accessibility features after idle for xx minutes.
考题
单选题Which of the following is the MOST important reason for referencing the HCL？（）A
To ensure that all hardware being used has previously been testedB
To ensure that all hardware being used has the latest firmwareC
To ensure that all hardware being used is the most energy efficientD
To ensure that all hardware being used can be upgraded in the future
考题
单选题The lockmaster has given you permission to tie off on the lower guide wall to wait your turn to lock through. What should you be most concerned with? （）A
A downbound vesselB
An upbound vesselC
Current reaction when the lock chamber is being emptiedD
Current reaction when the lock chamber is being filled
考题
单选题Which of the following statements is NOT true?A
Getting off to work with a minimum effort helps save one's energy.B
Dr. Kleitman doesn't explain why people reach their peaks at different hours of the day.C
Habit helps one adapt to his own energy cycle.D
Children have energy cycles, too.
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