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更多“单选题Incomplete proteins ______.A have all the essential amino acidsB are manufactured by the bodyC can mix with other proteins to form complete proteinsD can be gained from meat, fish, eggs, and milk”相关问题
  • 第1题:

    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. Starches

    B. Vitamins

    C. Proteins

    D. Fats

    2.If equal weight of the following substances is “burned” in the body,

    A. carbohydrates

    B. fats

    C. vitamins

    D. mineral salts

    3.A boy grows five centimeters a year.The new material

    A. fats

    B. vitamins

    C. proteins

    D.carbohydrates

    4.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 diet

    B. drinking more milk

    C. eating fruits and vegetables

    D. having more fish and eggs


    参考答案BBCBA

  • 第2题:

    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.


    正确答案:B
    答案为 B。根据第一段第二至第五句, Actually, their talk may be as meaningful as much of our own.For example,some sea animals use their  "voices" to locate their food in the ocean expanses;others use their "voices" to let their fellows know of their locations;and still others,as a means of obtaining mates.Sometimes, "speaking" may even mean the difference between life and death to a sea animal.It appears in some cases that when a predator approaches,the prey depends on no more than the sounds it makes to escape 作出该项选择。选项 A中only不确切;选择 C和D在文中都没提到。

  • 第3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

    答案:A
    解析:
    第二段第四句说,蛋黄也含有维生素A。因此选A。
    第三段最后两句说,维生素B,不仅存在于全谷类食品,如糙米,还存在于其他的食物里,包括豆类、坚果、肉类和鱼类。因此选B。
    第四段最后一句:"In some countries, it is added to products like bread.”在一些国家,它被添加到面包等产品中,而不是in most countries。因此选B。
    第五段最后一句说,所以我们必须每天食用柑橘类水果、西红柿和生卷心菜以摄取维生素C。因此选A。
    第二段第三句说,鱼肝油富含维生素A。第六段最后一句说,鱼肝油也含有维生素D。因此选D。
    最后一段说,健康的血液需要维生素K。它通过增加创口周围的血液私稠度来止血。猪肉产品、肝脏和蔬菜(像卷心菜、甘蓝和菠菜)富含维生素K。因此选B。
    维生素有助于人体健康,但文章并没有提到维生素越多越好,因此选择C。

  • 第4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

    答案:A
    解析:
    第二段第四句说,蛋黄也含有维生素A。因此选A。
    第三段最后两句说,维生素B,不仅存在于全谷类食品,如糙米,还存在于其他的食物里,包括豆类、坚果、肉类和鱼类。因此选B。
    第四段最后一句:"In some countries, it is added to products like bread.”在一些国家,它被添加到面包等产品中,而不是in most countries。因此选B。
    第五段最后一句说,所以我们必须每天食用柑橘类水果、西红柿和生卷心菜以摄取维生素C。因此选A。
    第二段第三句说,鱼肝油富含维生素A。第六段最后一句说,鱼肝油也含有维生素D。因此选D。
    最后一段说,健康的血液需要维生素K。它通过增加创口周围的血液私稠度来止血。猪肉产品、肝脏和蔬菜(像卷心菜、甘蓝和菠菜)富含维生素K。因此选B。
    维生素有助于人体健康,但文章并没有提到维生素越多越好,因此选择C。

  • 第5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.

    正确答案:C

  • 第6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 CANCEL
    • B、 UNTIL SCN
    • C、 UNTIL SEQUENCE
    • D、 UNTIL TIME

    正确答案:A

  • 第7题:

    单选题
    We can learn from the passage that ants are _____.
    A

    not willing to share food

    B

    not found around the poles

    C

    more successful than all other animals

    D

    too many to achieve any level of organization


    正确答案: D
    解析:
    文章第一段第三句指出“They also live nearly everywhere, except on frozen mountain tops and around the poles.”,即结冰的山顶和极地周围没有蚂蚁。

  • 第8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.


    正确答案: B
    解析: 暂无解析

  • 第9题:

    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


    正确答案: B
    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10题:

    单选题
    From the last paragraph, we can learn _____ if they keep lazy.
    A

    people may have heart disease

    B

    people can work at home all the time

    C

    people like shopping online

    D

    people don’t like climbing the stairs


    正确答案: A
    解析:
    最后一段提到“…fatness-related (相关的) illnesses such as heart disease and cancer have been on an increase”,所以懒惰可能会增加患心脏病的可能。

  • 第11题:

    填空题
    When you are starving, proteins can also be broken down into amino acids.____

    正确答案: H
    解析:
    根据题干信息“starving, proteins”可以定位到H段“In extreme cases (like starvation), proteins can also be broken down into amino acids”,故匹配段落为H段。

  • 第12题:

    单选题
    We can learn from the passage that _____.
    A

    the hotels where you stay will offer you free breakfast

    B

    dining information can be obtained from your tour guides

    C

    you can have a complete choice of local dishes at the hotel

    D

    a full list of local restaurants can be found on the tour pages


    正确答案: D
    解析:
    事实细节题。题中问“从文章中我们可以得知什么?”从文章的第三段和第四段可知,导游会就饮食提出很多的建议。答案为B。

  • 第13题:

    When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?()

    A. All OSPF routers in stubby areas can have type 3 LSAs in their database.

    B. All OSPF routers in stubby areas can have type 7 LSAs in their database.

    C. All OSPF routers in totally stubby areas can have type 3 LSAs in their database.

    D. All OSPF routers in totally stubby areas can have type 7 LSAs in their database.

    E. All OSPF routers in NSSA areas can have type 3 LSAs in their database.

    F. All OSPF routers in NSSA areas can have type 7 LSAs in their database.


    参考答案:A, E, F

  • 第14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.

    In most countries,vitamin B-twelve is added to products like bread.
    A:Right
    B:Wrong
    C:Not mentioned

    答案:B
    解析:
    第二段第四句说,蛋黄也含有维生素A。因此选A。
    第三段最后两句说,维生素B,不仅存在于全谷类食品,如糙米,还存在于其他的食物里,包括豆类、坚果、肉类和鱼类。因此选B。
    第四段最后一句:"In some countries, it is added to products like bread.”在一些国家,它被添加到面包等产品中,而不是in most countries。因此选B。
    第五段最后一句说,所以我们必须每天食用柑橘类水果、西红柿和生卷心菜以摄取维生素C。因此选A。
    第二段第三句说,鱼肝油富含维生素A。第六段最后一句说,鱼肝油也含有维生素D。因此选D。
    最后一段说,健康的血液需要维生素K。它通过增加创口周围的血液私稠度来止血。猪肉产品、肝脏和蔬菜(像卷心菜、甘蓝和菠菜)富含维生素K。因此选B。
    维生素有助于人体健康,但文章并没有提到维生素越多越好,因此选择C。

  • 第15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

    答案:C
    解析:
    第二段第四句说,蛋黄也含有维生素A。因此选A。
    第三段最后两句说,维生素B,不仅存在于全谷类食品,如糙米,还存在于其他的食物里,包括豆类、坚果、肉类和鱼类。因此选B。
    第四段最后一句:"In some countries, it is added to products like bread.”在一些国家,它被添加到面包等产品中,而不是in most countries。因此选B。
    第五段最后一句说,所以我们必须每天食用柑橘类水果、西红柿和生卷心菜以摄取维生素C。因此选A。
    第二段第三句说,鱼肝油富含维生素A。第六段最后一句说,鱼肝油也含有维生素D。因此选D。
    最后一段说,健康的血液需要维生素K。它通过增加创口周围的血液私稠度来止血。猪肉产品、肝脏和蔬菜(像卷心菜、甘蓝和菠菜)富含维生素K。因此选B。
    维生素有助于人体健康,但文章并没有提到维生素越多越好,因此选择C。

  • 第16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

    答案:A
    解析:
    本段话意为“你在考试中的表现达到了要求, ,你可以得到你想要的”。A项“换句话说.也就是说”;B 项“最后,最终”;C项“总共”;D 项“毕竟”。结合选项和语境可知A项最符合。

  • 第17题:

    Which of the following can be utilized from a Legacy form without additional coding?()

    • A、Field Validations
    • B、Query Save logic
    • C、Dialog forms
    • D、All of the above

    正确答案:A

  • 第18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.


    正确答案: B
    解析:
    结论推断题。答案出处为文章第一段:Even a skilled writer probably could not describe all the features that make a face difference from another. A, B, C三项均可以在原文第一、二段找到对应表述。

  • 第19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 CANCEL

    B

     UNTIL SCN

    C

     UNTIL SEQUENCE

    D

     UNTIL TIME


    正确答案: A
    解析: 暂无解析

  • 第20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.


    正确答案: C
    解析:

  • 第21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

    two

    B

    three

    C

    four


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    Cheap protein substitutes from milk, eggs and meat ______.
    A

    may be obtained from vitamin and minerals

    B

    are being sought by scientists

    C

    can be gotten from soybeans

    D

    can be found in iodized salt


    正确答案: B
    解析:
    事实细节的找寻和判断。题干中的关键词为cheap protein,从而定位到录音后半部分提到的“Mixtures of vegetable proteins, like soybeans and peanuts, could provide an abundance of cheap, useful protein where meats, eggs, milk are not within economic reach…”,可知如果因为经济原因而买不起肉、蛋、奶时,蔬菜类蛋白混合物同样可以提供丰富、便宜并且有益的蛋白质,例如大豆和花生。由此可知,来自奶、蛋和肉的蛋白质可以从大豆中获得。故选项C为正确答案。

  • 第23题:

    问答题
    Only one other word can be made from all the letters of INSATIABLE. Can you find it?

    正确答案: BANALITIES.
    解析:
    banality平凡,陈腐。

  • 第24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 allergies

    B

    that under 12 months the proteins in whole milk can induce milk allergries in children

    C

    of proteins in whole milk inducing milk allergies in children under 12 months

    D

    the proteins in whole milk can induce milk allergies in children under 12 months

    E

    that the proteins in whole milk can induce milk allergies in children under 12 months


    正确答案: C
    解析:
    根据固定搭配“it has not been confirmed that…”可知A、C、D错误;B项中存在逻辑错误,故本题选E项。