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问题 单项选择题 A1型题

职业生理学研究的主要内容是（）

A.劳动过程中机体生理的变动规律

B.生产劳动的组织

C.劳动力的合理化管理

D.提高作业能力和工作效率

E.预防疲劳和过劳

答案

参考答案：A

填空题
用所给单词的适当形式填空。
1. He watched his things _____ (careful) and said nothing.
2. At that time, the young mum _____ (hold) her son  in her arms,with tears in her eyes.
3. The young man _____ ( drop) his cigarette on the floor.
4. My teacher didn't come to school yesterday, because he _____ ( feel) ill.
5. When we got there, he _____ (sit) there and drinking.
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问答题 简答题

什么叫积分分离？它在过程控制中有何作用？
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