单项选择题

Dr. Kleitman ______.

A．has lost so much sleep that he is now suffering from insomnia
B．has conducted experiments on sleepwalkers
C．has slept more than any other living man of his age
D．does not believe that there are any sleepwalkers at all

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热门试题

单项选择题

According to the passage, which of the following statements is NOT true

A．There is no accurate figure of the number of sleepwalkers.
B．Stories of sleepwalkers are all fantasies.
C．Sleepwalkers can be considered half awake in their sleep.
D．Voltaire knew a sleepwalker who once danced a minuet in sleep.

单项选择题

According to experts on sleepwalking, sleepwalkers ______.

A．can commit murder or other dangerous things
B．can be fatally hurt if they are wakened abruptly
C．are partially awake
D．are immune to injury