单项选择题

The author implies that if human beings are kept awake for more than a week the result（）

A．is hard to imagine
B．will probably be a mental breakdown
C．is difficult to describe
D．will probably be dead

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热门试题

单项选择题

By writing this passage, the writer intends to tell us that（）

A．sleep is important for good mental and physical health
B．a light sleep is as restful as a deep sleep
C．memory is improved during sleep
D．sleep is relatively unimportant for human beings

单项选择题

We'll never forget（）in New York last year.

A．us to meet a few friends
B．our meeting a few friends
C．a few friends to meet
D．a few friends meeting