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问题 单项选择题

目前广泛采用瓷或钢化玻璃制造绝缘子，是因为它们具有（），能抵抗气温和晴雨等气候的变化。

A.热稳定性差；

B.伸胀性小；

C.击穿电压低于闪络电压；

D.不变；

答案

参考答案：B

填空题
单词释义：根据英语解释写出相对应的单词或短语。
1. not consider something or take no notice of _____
2. to experience something difficult or unpleasant or examine something very carefully _____
3. not in a building or in the open air _____
4. the loud noise that you sometimes hear in the sky during a storm _____
5. someone that you do a certain activity with _____
6. to become fit and healthy again after an illness or get back something you lost or someone
    stole from you _____
7. a young person between the ages of 13 and 19 ______
8. to do an activity with people who are already doing it ______
9. the time before it gets dark when the sky is becoming less bright _____
10. to put things into cases, boxes etc. so that you can take or send them somewhere _____
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单项选择题

下列选项中，关于粉碎的药剂学意义说法错误的是( )。

A．减少粒径，增加比表面积

B．有利于各成分混合均匀

C．有利于提高固体药物在液体制剂中的分散性

D．有助于从天然药物提取有效成分

E．有利于提高固体药物的流动性
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