单项选择题

案例分析题 During REM, ______.

A．your eyes move quickly
B．you dream
C．you are restless
D．both A and B
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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．nervous
D．breathe quickly
单项选择题
The average number of hours of sleep that an adult needs is ______.
A．approximately six hours
B．around ten hours
C．about eight hours
D．not stated here
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