问题 单项选择题

硬脂酸镁在片剂中作为

A.崩解剂

B.稀释剂

C.吸收剂

D.润滑剂

E.助流剂

答案

参考答案:D

解析:硬脂酸镁润滑性强,附着性好,具疏水性,可作为片剂的润滑剂,选D。

听力题
阅读理解

阅读短文,并完成后面的任务。

     Waste can be seen everywhere in the school. Some students ask for more food than they

can eat and others often forget to turn off the lights when they leave the classroom. They say

they can afford these things. But I don't agree with them.

      Waste can bring a lot of problems. Although China is rich in some resources (资源), we

are short of others, for example; fresh water. It is reported that we will have no coal or oil to

use in 100 years. So if we go on wasting our resources, what can we use in the future and

where can we move? Think about it. 3. I think we should say no to the students who waste

things every day. Everybody should stop wasting as soon as possible.

      In our everyday life, we can do many things to prevent (阻止) waste from happening,

for example, turn off the water taps when we finish washing, turn off the lights when we

leave the classroom, try not to order more food than we need, and so on. Little by little, everything

will be changed. 4. Waste can be stopped one day, if we do our best.

1. List the wastes mentioned in the first passage. (within 15 words)

    ____________________________________________________ 

2. What problems can waste bring? (within 20 words) 

    (1) _________________________________________________

    (2) _________________________________________________

3. 将短文中画线的句子翻译成汉语。

    ____________________________________________________

4.  ____________________________________________________

5. 请给短文拟一个适当的标题。(within 5words)

    _____________________________________________________