单项选择题

In the second paragraph the word "dart" means______.
A. glare
C. stop moving
B. move rapidly or suddenly
D. gaze

A．move rapidly or suddenly
B．gaze
C．stop moving
D．In the second paragraph the word "dart" means______.
E．glare
<上一题 目录 下一题>
热门 试题

单项选择题
Stage 4 sleep lasts______.
A．about 80 minutes
B．about 40-60 minutes
C．about 30 minutes
D．about 20-40 minutes
单项选择题
One of the features of REM sleep is that______.
A．there are large slow waves, though rapid for the first few minutes
B．you have the deepest sleep
C．there are no brain waves
D．the brain waves are a little fast and the brain becomes a little active
相关试题