单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A. It makes the workers excited.
B. It helps to reduce workers’ complaint.
C. It makes workers spend less time having their dinner.
D. It might make the production increase.
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单项选择题
A. She doesn’t do as well as the man. B. She wants to help him with his study. C. She thinks two persons working together can solve problems better. D. She can’t solve some of the problems.
A. She doesn’t do as well as the man.
B. She wants to help him with his study.
C. She thinks two persons working together can solve problems better.
D. She can’t solve some of the problems.
单项选择题
A. How to avoid noise pollution. B. Why noise pollution is difficult to define.C. What noise pollution is and its effect. D. How to distinguish noise pollution.
A. How to avoid noise pollution.
B. Why noise pollution is difficult to define.
C. What noise pollution is and its effect.
D. How to distinguish noise pollution.
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