超星 - 5.2 - 查题吧

单选题

含有SO42-、Cl-、HCO3-、Na+、Ca2+的饮用水通过阴离子交换树脂后：

A. 水液中有Cl-、HCO3-
B. 水液中无Ca2+
C. 水液中有Na+、Ca2+
D. 树脂吸附了Na+
E. 树脂吸附了Na+、Ca2+

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单选题

纯化水制备注射用水采用哪种方法：

A. 离子交换法
B. 蒸馏法
C. 反渗透法
D. 电渗析法
E. 灭菌法

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单选题

What kind of food should we eat according to the passage?

A.Food rich in fiber and free of fat.
B.Only vegetables, fruits and grains.
C.Refined grain products.
D.A wide variety of highcalorie food.

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单选题

Which of the following is NOT true?

A.The daily amount of calorie we need is 2，000 calories.
B.Creating a healthy diet can help us avoid illnesses.
C.Vegetables and fruits are free of fat.
D.We need to drink more soda.

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单选题

What is the meaning of “Don't be the food police”？

A.Don't learn too much about food.
B.Don't be a policeman or policewoman when eating food.
C.Don't limit the amount of the food you eat.
D.Don't forbid some unhealthy food.

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单选题

Why can we enjoy fried food?

A.Because fried food is rich in nutrition.
B.Because we are happy when we eat it.
C.Because we need to eat a wide variety of food.
D.Because French fries is a highquality food.

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单选题

Have you been ___ a diet? You've lost a lot of weight.

A.to
B.on
C.in
D.out

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单选题

He has maintained that the money was donated for international purposes.What is the meaning of ‘maintain’in the sentence?

A. to make something continue at the same level
B. to keep a building, a machine, etc. in good condition
C. to keep stating that something is true
D.to support somebody or something over a long period of time

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单选题

I think this is a matter of especial importance.What is the meaning of ‘especial’in the sentence?

A. greater or better than usual
B. usual
C. different from normal
D. describe something that relates to one particular person

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单选题

You seem in rather a hurry to get rid of me.Which is NOT the meaning of ‘get rid of’in the sentence?

A.dispose of;
B.terminate or take out;
C.do away with;
D.get involved in

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