单项选择题

This passage states than a person is really asleep only ______.

A．after dreaming has stopped
B．when his EEG reveals no alpha rhythm
C．when his EEG begins to show an alpha rhythm
D．after the completion of his alpha rhythm decline

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热门试题

单项选择题

Which of the following statements about the 55 men framing the Constitution is true

A．Thomas Jefferson was not among them.
B．All of them were famous.
C．All of them contributed much to the framing
D．George Washington and Benjamin Franklin were among them.

单项选择题

What does stalwart in Even Great Britain, most stalwart of nations… (line 5, paragraph 2) most likely mean

A．forgiving
B．helpful
C．firm and steadfast
D．understanding