第（9）题

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参考答案

1 第（10）题

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2 听录音，回答题
What should one do if he wants to work more efficiently at his low point in the morning?

A． Change his energy cycle.

B． Overcome his laziness.

C． Get up earlier than usual.

D．Go to bed earlier.

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3 hy does the speaker suggest we rise with a yawn and stretch?

A． Because it will help keep your energy for the day's work.

B． Because it will help you to control your temper early in the day.

C． Because it will help you to' concentrate on your routine work.

D． Because it will keep your energy cycle under control all day.

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