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问题 单项选择题

劳动效率是指（）。

A.在一般情况下，与劳动生产率成反比

B.是与最终劳动成果相联系的重要指标

C.是指劳动时间与劳动成果的比值

D.表示一定时间，一定质量条件下完成的作业量的大小

答案

参考答案：D

解析：劳动效率指标，表示在一定时间、一定质量条件要求下完成的作业量的多少。如平均每"人工日"或"人工时"的作业量。

填空题

选词填空。

go off      take up      be reduced by      switch over      be filled with      suffer from      take place  

wake up      stand for      complain about

1.This program is boring.Can you       the TV?

2.Being an explorer,Tom found that his life       challenges and risks.

3.Many friends often       to me       their mothers.

4.The gun        and she was killed.

5.WHO        World Health Organization.

6.Mary isn’t well.She often       headache.

7.The air       conditioner  much space in the room.

8.Some elderly people are easy to       but hard to fall asleep.

9.Some 300 papers were       (提交)at the conference.

10.I heard a faint sound in the      (远处).

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选择题

食量很大，每昼夜吃的昆虫总量约等于自身体重的鸟是

A．猫头鹰

B．大山雀

C．啄木鸟

D．野鸭
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