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问题 单项选择题

“四步工作法”的第一步是（）。

A.策划方案

B.调查研究

C.组织实施

D.评估效果

答案

参考答案：B

填空题
选词填空。
in, to, at, for, on, in front of, behind, from, under
1. Tom is ____________ America. Now. he is ____________ Shanghai.
2. I can't sit ____________ Amy. She is so tall. I can't see the blackboard.
3. — Are these cakes ____________ me?  — Yes, they are.
4. — What's this ____________ English?  — It's a watch.
5. — Who's the boy ____________ purple?  — He is my brother.
6. You are ill and come ____________ see the doctor.
7. It's time ____________ get up. I often get up ____________ six.
8. Who's ____________ duty today?
9. Lucy is ____________ the classroom. She is listening to the teacher now.
10. — What do you do ____________ Saturdays?  I often swim ____________ the pool.
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单项选择题

危害档案的微生物及档案害虫，它们所要求的最适宜的相对湿度均在（）以上。

A.60%

B.70%

C.80%

D.90%
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