We can see _____ stars at night if there are no clouds in the sky. [ ]

A. thousand of

B. thousands of

C. a thousand

患者经针刺或反复大声叫喊后能醒来，做简短模糊的回答，外界刺激停止立即入睡，这种意识状态称为（）。

A.清醒

B.昏睡

C.嗜睡

D.浅昏迷

E.深昏迷