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

<上一题目录下一题>

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

Du Bois differs from Booker politically in that he ______.

A．believed hard work and success were the only way to win respect
B．rejected the idea of tentative tolerance of racial discrimination
C．encouraged organized violence as part of the struggle for equality
D．took it as his 'ultimate goal to build an independent nation of blacks