网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The color of rockets，shells，or rocket parachute flares used to indicate that the vessel is in distress and requires immediate assistance is（）.
A
white
B
green
C
red
D
yellow
参考答案
参考解析
解析：
暂无解析
更多 “单选题The color of rockets，shells，or rocket parachute flares used to indicate that the vessel is in distress and requires immediate assistance is（）.A whiteB greenC redD yellow” 相关考题
考题
According to Paragraph 2, which of the following is true of colours?A Colors are encoded in girls' DNAB Blue used to be regarded as the color for girlsC Pink used to be a neutral color in symbolizing gendersD White is preferred by babies
考题
The policy action of color is used for congestion control under which circumstance?()
A.congestion in an upstream routerB.congestion in a downstream routerC.contention for queue space on an egress interfaceD.contention for queue space on an ingress interface
考题
共用题干
Rockets in the SkyIf someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.When an airplane flies too high,______.A:the air will be too thin to support its wingsB:the air will become thickerC:the air will exert pressure on itD:the air will disappear in no time
考题
共用题干
Rockets in the SkyIf someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.Which of the following statements about a rocket is NOT true?A:It can fly when there is no air.B:It can fly without wings.C:It is made of strong metal.D:It is propelled by burning gas inside it.
考题
共用题干
Rockets in the SkyIf someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.What color is the sky?A:It is blue. B:It is white.C:It is grey. D:It has no color.
考题
Which of the following is a reason black toner is used in color printers？（）A、It decreases the print speed in color laser printers.B、It prevents moir patterns when printing color photographs.C、It reduces the cost per page when printing gray scale documents.D、It makes the color toner resistant to smudging when wet.
考题
单选题Which condition represents the appropriate time for setting off distress flares and rockets? （）A
Only when there is a chance of their being seen by rescue vesselsB
At half hour intervalsC
At one hour intervalsD
Immediately upon abandoning the vessel
考题
单选题Each OSV must carry（）.A
one category I 406 Mhz satellite EPIRBB
at least one life buoy on each side of the vessel fitted with a buoyant life lineC
at least 12 rocket parachute flaresD
All of the above
考题
单选题Which of the following is a reason black toner is used in color printers？（）A
It decreases the print speed in color laser printers.B
It prevents moir patterns when printing color photographs.C
It reduces the cost per page when printing gray scale documents.D
It makes the color toner resistant to smudging when wet.
考题
问答题设计任务：请阅读下面学生信息和语言素材，设计20分钟的英语听说教学方案。教案没有固定格式，但须包含下列要点：●teaching objectives●teaching contents●key and difficult points●major steps and time allocation●activities and justifications教学时间：20分钟学生概况：某城镇普通高中三年级学生，班级人数40人，多数学生已经达到《普通高中英语课程标准（实验）》六级水平。学生课堂参与积极性一般。语言素材：A great Chinese scientist Father of the Chinese space programme Yu Ping（YP）is talking to her friend Steve Smith（SS）about Qian Xuesen and his work as a rocket scientist.Part1YP:What do you want to be when you grow up，Steve？SS:I want to be an astronomer and visit stars.I wish to visit Mars one day.YP:I think I'd like to work in the space industry，too. I'd like to be a rocket scientist like Qian Xuesen.SS:What did he have to do to become a rocket scientist？YP:Well，he first studied at university to be an engineer.Later he went to America to study for his doctor's degree.It was then he began to work on rockets.SS:So it was lucky for our space programme that he came back to China.YP:Very much so. There was no work on space rockets in China before his institute to design and build rockets to go into space.Part2SS:Do you think he wanted to travel into space in one of his rockets？YP:I have no idea but I believe he looked forward to the first space flight by a Chinese astronaut.SS: Yes. Now that China has sent satelites into space,I hope we' ll be the first to land on Mars.That would really be something special and if I were that astronaut I would put Qian Xuesen's picture on Mars to show how much we admire his work.YP: Indeed. He is rightfully called the father of the Chinese space programme. He is my hero and this is why I want to be a rocket scientist.SS: Well, we'd better get on with our homework. We need good grades to get into university.YP: Right you are. See you, then.SS: See you.
考题
单选题In towing，heaving lines are used for（）.A
passing a tow bridle to the tugB
passing a messenger lineC
heaving in the tow bridleD
service lines with rocket line throwers
考题
单选题When should you use distress flares and rockets?（）A
Only when there is a chance of their being seen by rescue vesselsB
At half-hour intervalsC
At one-hour intervalsD
Immediately upon abandoning the vessel
考题
单选题When should distress flares and rockets be used? （）A
Immediately upon abandoning the vesselB
Only when there is a chance of their being seen by a rescue vesselC
At one hour intervalsD
At half hour intervals
考题
单选题Which is NOT a distress signal? （）A
A continuous sounding with any fog signal apparatusB
A signal sent by radiotelephone consisting of the spoken word MaydayC
An International Code Signal of N.C.D
The firing of green star rockets or shells
考题
单选题How should signal flares be used after you have abandoned ship and are adrift in a liferaft?（）.A
Immediately use all the signals at onceB
Use all the signals during the first nightC
Employ a signal every hour after abandoning ship until they are goneD
Use them only when you are aware of a ship or plane in the area
考题
单选题Where were shells used as money in history?A
In the Philippines.B
In China.C
In Africa.D
We don’t know.
考题
单选题The policy action of color is used for congestion control under which circumstance?（）A
congestion in an upstream routerB
congestion in a downstream routerC
contention for queue space on an egress interfaceD
contention for queue space on an ingress interface
考题
单选题Which is NOT a distress signal?（）A
A continuous sounding with any fog signal apparatusB
A signal sent by radiotelephone consisting of the spoken word MaydayC
An International Code Signal of N.CD
The firing of green star rockets or shells
考题
单选题The regulations require that inspected vessels on an international voyage，other than small passenger vessels，must carry which of the following distress signals on or near the navigating bridge?（）A
12 hand red flaresB
12 rocket parachute flaresC
12 hand combination flares and orange smoke signalsD
6 hand red flares，and 6 hand orange smoke signals
考题
单选题What color is used to indicate the last shot of anchor chain?（）A
RedB
WhiteC
BlueD
Yellow
考题
单选题When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.A
the intensity of the lightB
checking the period and characteristics against the Light ListC
the color，because the buoy will have only a red or a green lightD
Any of the above can be used to identify the light
考题
单选题Line throwing apparatus aboard ship must contain（）.A
two rockets，one of which shall be the buoyant typeB
three rockets，one of which shall be the buoyant typeC
four rockets，two of which shall be the buoyant typeD
five rockets，two of which shall be the buoyant type
热门标签
最新试卷