单项选择题

During REM, ______.

A．your eyes move quickly
B．you dream
C．you breathe slowly
D．both A and B
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单项选择题
The underlined word drowsy in the last paragraph means ______.
A．sick
B．stand up
C．tired
D．a little sleepy
单项选择题
This passage suggests that not getting enough sleep might make you ______.
A．dream more often
B．have poor health
C．tired
D．breathe quickly
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