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单选题
Incomplete proteins ______.
A
have all the essential amino acids
B
are manufactured by the body
C
can mix with other proteins to form complete proteins
D
can be gained from meat, fish, eggs, and milk
参考答案
参考解析
解析：
第五段介绍了两种“to form complete proteins from incomplete proteins”的方法，都是通过“mix with other proteins”，与C项内容相符。
第五段介绍了两种“to form complete proteins from incomplete proteins”的方法，都是通过“mix with other proteins”，与C项内容相符。
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Which of the following is NOT true_________?A． People may have more healthful food at McDonald's.B． Scientists can control levels and types of substances to grow meat in labs.C． Lab meat is less likely to be polluted like other kinds of meat.D． It will not be long before lab meat is available in supermarkets.
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A、would have enjoyedB、shouldn't have enjoyedC、needn't have enjoyedD、can’t have enjoyed
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We get energy from the foods we eat.Our food supplies energy to keep our organs working.Our food also supplies heat to warm our bodies.The main energy foods are the carbohydrates (碳水化合物).These are the sugars and starches(淀粉). Wheat and rice are rich in starch and many fruits and vegetables contain considerable amount of sugar. Sweets, honey and jam are also rich in sugar.Like carbohydrates, fats are food that provides us with energy. Butter, margarine, certain types of fish, eggs, cooking oils and most red meats are rich in fats. Fats can be stored in various parts of the body as reserves of energy. Because fats in general are slowly digested, they satisfy hunger for long periods.Proteins (蛋白质) are very complex substances. The body needs proteins for the growth of new cells and for the repair and replacement of old cells. Foods rich in proteins are essential to a balanced diet. Milk, some vegetables, meat, chicken, fish, cheese, grains and nuts are some foods rich in proteins.A good diet will contain a variety of foods so that the body contains all the minerals it needs for good health.Vitamins are necessary for the proper working of the body. If we eat a variety of foods, we can be sure of obtaining all the vitamins we need.Water makes up about 70 per cent of the weight of the human body. The average adult needs about two liters of water daily to replace the water the body loses.1.Of the following substances, which are not used as sources of energy by living things?()A. StarchesB. VitaminsC. ProteinsD. Fats2.If equal weight of the following substances is “burned” in the body,A. carbohydratesB. fatsC. vitaminsD. mineral salts3.A boy grows five centimeters a year.The new materialA. fatsB. vitaminsC. proteinsD.carbohydrates4.Which of the following is not true?()A. If a man weighs 150 pounds, 105 pounds are water.B. Apple, butter and meat are rich in proteins.C. A well-balanced diet contains proteins, fats, minerals and vitamins.D. Biscuits, cake and sweets may provide us with energy.5.People can get all the minerals the body needs by().A. having a balanced dietB. drinking more milkC. eating fruits and vegetablesD. having more fish and eggs
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When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?()
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Which of the following statements can best be inferred from the passage?A. Fishes only "speak" to communicate with each other.B. Researches are now being made to study the significance of fish sounds.C. Sea animals have a sharper hearing ability than men.D. Sounds made by fish cannot be transmitted through the air.
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共用题干
Which foods should be eaten to keep us healthy?Let us look at some important vitamins for these answers.Vitamin A helps prevent skin and other tissues from becoming dry.People who do not get enough vitamin A cannot see well in darkness.Vitamin A is found in fish liver oil.It also is in the yellow part of eggs.Sweet potatoes,carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A.Vitamin B-one changes starchy（含淀粉的）foods into energy. It also helps the heart and nervous system work smoothly.Without it,we would be weak and would not grow.Vitamin B-one is found not just in whole grains like brown rice,but also in other foods.These include beans and peas,nuts,and meat and fish.Vitamin B-twelve is needed so folic acid（叶酸）can do its work. Together, they help produce red blood cells.Vitamin B-twelve is found naturally in foods such as eggs,meat,fish and milk products.Folic acid has been shown to prevent physical problems in babies when taken by their mothers during pregnancy.Vitamin B-twelve is found in green leafy vegetables and other foods,like legumes and citrus fruits.In some countries,it is added to products like bread.Vitamin C is needed for strong bones and teeth,and for healthy blood passages.It also helps wounds heal quickly.The body stores little vitamin C.So we must get it every day in foods such as citrus（柑橘类）fruits,tomatoes and uncooked cabbage.Vitamin D increases levels of the element calcium in the blood.Calcium is needed for nerve and muscle cells to work normally.It also is needed to build strong bones.Ultraviolet light from the sun changes a substance in the skin into vitamin D.Fish liver oil also contains vitamin D.Vitamin K is needed for healthy blood.It thickens the blood around a cut to stop bleeding. Vitamin K can be found in pork products,liver and in vegetables like cabbage,kale and spinach. In most countries,vitamin B-twelve is added to products like bread.A:Right B:Wrong C:Not mentioned
考题
共用题干
Which foods should be eaten to keep us healthy?Let us look at some important vitamins for these answers.Vitamin A helps prevent skin and other tissues from becoming dry.People who do not get enough vitamin A cannot see well in darkness.Vitamin A is found in fish liver oil.It also is in the yellow part of eggs.Sweet potatoes,carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A.Vitamin B-one changes starchy（含淀粉的）foods into energy. It also helps the heart and nervous system work smoothly.Without it,we would be weak and would not grow.Vitamin B-one is found not just in whole grains like brown rice,but also in other foods.These include beans and peas,nuts,and meat and fish.Vitamin B-twelve is needed so folic acid（叶酸）can do its work. Together, they help produce red blood cells.Vitamin B-twelve is found naturally in foods such as eggs,meat,fish and milk products.Folic acid has been shown to prevent physical problems in babies when taken by their mothers during pregnancy.Vitamin B-twelve is found in green leafy vegetables and other foods,like legumes and citrus fruits.In some countries,it is added to products like bread.Vitamin C is needed for strong bones and teeth,and for healthy blood passages.It also helps wounds heal quickly.The body stores little vitamin C.So we must get it every day in foods such as citrus（柑橘类）fruits,tomatoes and uncooked cabbage.Vitamin D increases levels of the element calcium in the blood.Calcium is needed for nerve and muscle cells to work normally.It also is needed to build strong bones.Ultraviolet light from the sun changes a substance in the skin into vitamin D.Fish liver oil also contains vitamin D.Vitamin K is needed for healthy blood.It thickens the blood around a cut to stop bleeding. Vitamin K can be found in pork products,liver and in vegetables like cabbage,kale and spinach. Vitamin A is found in the yellow part of eggs.A:Right B:Wrong C:Not mentioned
考题
共用题干
Which foods should be eaten to keep us healthy?Let us look at some important vitamins for these answers.Vitamin A helps prevent skin and other tissues from becoming dry.People who do not get enough vitamin A cannot see well in darkness.Vitamin A is found in fish liver oil.It also is in the yellow part of eggs.Sweet potatoes,carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A.Vitamin B-one changes starchy（含淀粉的）foods into energy. It also helps the heart and nervous system work smoothly.Without it,we would be weak and would not grow.Vitamin B-one is found not just in whole grains like brown rice,but also in other foods.These include beans and peas,nuts,and meat and fish.Vitamin B-twelve is needed so folic acid（叶酸）can do its work. Together, they help produce red blood cells.Vitamin B-twelve is found naturally in foods such as eggs,meat,fish and milk products.Folic acid has been shown to prevent physical problems in babies when taken by their mothers during pregnancy.Vitamin B-twelve is found in green leafy vegetables and other foods,like legumes and citrus fruits.In some countries,it is added to products like bread.Vitamin C is needed for strong bones and teeth,and for healthy blood passages.It also helps wounds heal quickly.The body stores little vitamin C.So we must get it every day in foods such as citrus（柑橘类）fruits,tomatoes and uncooked cabbage.Vitamin D increases levels of the element calcium in the blood.Calcium is needed for nerve and muscle cells to work normally.It also is needed to build strong bones.Ultraviolet light from the sun changes a substance in the skin into vitamin D.Fish liver oil also contains vitamin D.Vitamin K is needed for healthy blood.It thickens the blood around a cut to stop bleeding. Vitamin K can be found in pork products,liver and in vegetables like cabbage,kale and spinach. The more Vitamins we have,the more healthy we will be.A:Right B:Wrong C:Not mentioned
考题
共用题干
Which foods should be eaten to keep us healthy?Let us look at some important vitamins for these answers.Vitamin A helps prevent skin and other tissues from becoming dry.People who do not get enough vitamin A cannot see well in darkness.Vitamin A is found in fish liver oil.It also is in the yellow part of eggs.Sweet potatoes,carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A.Vitamin B-one changes starchy（含淀粉的）foods into energy. It also helps the heart and nervous system work smoothly.Without it,we would be weak and would not grow.Vitamin B-one is found not just in whole grains like brown rice,but also in other foods.These include beans and peas,nuts,and meat and fish.Vitamin B-twelve is needed so folic acid（叶酸）can do its work. Together, they help produce red blood cells.Vitamin B-twelve is found naturally in foods such as eggs,meat,fish and milk products.Folic acid has been shown to prevent physical problems in babies when taken by their mothers during pregnancy.Vitamin B-twelve is found in green leafy vegetables and other foods,like legumes and citrus fruits.In some countries,it is added to products like bread.Vitamin C is needed for strong bones and teeth,and for healthy blood passages.It also helps wounds heal quickly.The body stores little vitamin C.So we must get it every day in foods such as citrus（柑橘类）fruits,tomatoes and uncooked cabbage.Vitamin D increases levels of the element calcium in the blood.Calcium is needed for nerve and muscle cells to work normally.It also is needed to build strong bones.Ultraviolet light from the sun changes a substance in the skin into vitamin D.Fish liver oil also contains vitamin D.Vitamin K is needed for healthy blood.It thickens the blood around a cut to stop bleeding. Vitamin K can be found in pork products,liver and in vegetables like cabbage,kale and spinach. Fish liver oil contains vitamin A and vitamin D.A:Right B:Wrong C:Not mentioned
考题
Your performance in the test have reached the required standard, _____ ,you can get what you want.
A. in other words
B. in the end
C. in all
D. after all
考题
A customer wants to hold all enterprise data on their DS4000 system. Several servers were added after they purchased another company. The servers that have to be run are： （1）An Oracle database running on a HP-UX server （2）Several virtual machines running on VMWare ESX server （3）A Microsoft cluster running Exchange 2000 server Which of these new servers can be integrated with the DS4000？（）A、DS4000 storage does not support HP-UX， so the HP-UX server cannot be integrated.All other new servers can be used.B、An Exchange cluster needs local disks， so the DS4000 cannot be used for this.All other new servers can be used.C、When equipped with proper HBA’s and subsystem device drivers， all new servers can operate with the DS4000 storage device.D、VMWare ESX can use the DS4000 storage； however， the virtual machines running in it will not have access to this storage other than via a virtual disk.All other new servers can be used.
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Which of the following can be utilized from a Legacy form without additional coding？（）A、Field ValidationsB、Query Save logicC、Dialog formsD、All of the above
考题
You are performing an incomplete recovery because some important tables have been dropped and purged from the Recycle Bin. Which clause can you NOT use to perform the incomplete recovery by using the RMAN utility？（）A、 UNTIL CANCELB、 UNTIL SCNC、 UNTIL SEQUENCED、 UNTIL TIME
考题
单选题Which of the following statements is NOT true?A
People may have different personalities.B
People differ from each other in appearance.C
People can learn to recognize human faces.D
People can describe all human features of others.
考题
单选题We can learn from the passage that ants are _____.A
not willing to share foodB
not found around the polesC
more successful than all other animalsD
too many to achieve any level of organization
考题
单选题You are performing an incomplete recovery because some important tables have been dropped and purged from the Recycle Bin. Which clause can you NOT use to perform the incomplete recovery by using the RMAN utility？（）A
UNTIL CANCELB
UNTIL SCNC
UNTIL SEQUENCED
UNTIL TIME
考题
单选题A customer wants to hold all enterprise data on their DS4000 system. Several servers were added after they purchased another company. The servers that have to be run are： （1）An Oracle database running on a HP-UX server （2）Several virtual machines running on VMWare ESX server （3）A Microsoft cluster running Exchange 2000 server Which of these new servers can be integrated with the DS4000？（）A
DS4000 storage does not support HP-UX， so the HP-UX server cannot be integrated.All other new servers can be used.B
An Exchange cluster needs local disks， so the DS4000 cannot be used for this.All other new servers can be used.C
When equipped with proper HBA’s and subsystem device drivers， all new servers can operate with the DS4000 storage device.D
VMWare ESX can use the DS4000 storage； however， the virtual machines running in it will not have access to this storage other than via a virtual disk.All other new servers can be used.
考题
单选题What can a culture camp help to do according to Peter Kassen?A
It helps the adopted kids form a correct attitude to their complex heritage.B
It helps the Chinese children have fun with their American parents.C
It helps the Americans increase the adoption from Russia and China.D
It helps the American parents adopt children from other countries.
考题
单选题Exports are either raw materials or manufactured goods. Raw materials are products of the land， such as
cotton， timber or rubber. Some raw materials， such as iron ore， come from mines. These raw materials are
often exported by the countries that produce them to other countries where they are made into manufactured
goods. Some countries produce food for export， for example， meat， sugar， or cereals such as wheat and
maize. These countries are agricultural countries. An agricultural country needs fertile land and a good climate.
A cold， dry climate is not suitable for agriculture.
A country which produces manufactured goods is known as an industrialized country. An industrialized country
cannot always produce enough food for its own needs. In this case， it does not export foodstuffs. Instead it
has to import them. It relies on exports of manufactured products and pays for imports with the money it earns
from the exported goods.
From the first sentence of the passage we can know that there are（）kinds of exports.A
twoB
threeC
four
考题
单选题From the last paragraph, we can learn _____ if they keep lazy.A
people may have heart diseaseB
people can work at home all the timeC
people like shopping onlineD
people don’t like climbing the stairs
考题
单选题Cheap protein substitutes from milk, eggs and meat ______.A
may be obtained from vitamin and mineralsB
are being sought by scientistsC
can be gotten from soybeansD
can be found in iodized salt
考题
单选题We can learn from the passage that _____.A
the hotels where you stay will offer you free breakfastB
dining information can be obtained from your tour guidesC
you can have a complete choice of local dishes at the hotelD
a full list of local restaurants can be found on the tour pages
考题
单选题Although it has not been confirmed such proteins in whole milk are inducing in children under 12 months milk allergies, most pediatricians advise waiting until the child is one year old before introducing whole milk into his or her diet.A
such proteins in whole milk are inducing in children under 12 months milk allergiesB
that under 12 months the proteins in whole milk can induce milk allergries in childrenC
of proteins in whole milk inducing milk allergies in children under 12 monthsD
the proteins in whole milk can induce milk allergies in children under 12 monthsE
that the proteins in whole milk can induce milk allergies in children under 12 months
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