单项选择题

The main idea of this passage is that ______.

A．large numbers of people do not need sleep
B．a person was found who actually didn't need any sleep
C．everyone needs some sleep to stay alive
D．people can live longer by trying not to sleep

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单项选择题

After watching him closely, the doctors came to believe that Jerey Page ______.

A．needed some kind of sleep
B．was too old to need any sleep
C．needed no sleep at all
D．often slept in chair

单项选择题

One reason that might explain Page's sleeplessness was ______.

A．his mother's injured before he was born
B．that he had gradually got rid of the sleeping habit
C．his magnificent physical condition
D．that he hadn't got a bed