单项选择题

How could Dennis distinguish between a book and a pillow of the same size and at an equal distance in front of him A book would produce ______.

A．a higher-pitched sound
B．a louder sound
C．a sharper sound
D．a fuzzier sound
<上一题 目录 下一题>
热门 试题

单项选择题
That year in New Jersey lives in my mind... ,as the author intended, means ______.
A．that was a year in which awful things happened to me
B．that was a year that I will never even forget
C．that was a year that only existed in my mind; but never happened to exist
D．that was a year when I lived in New Jersey
单项选择题
The writer says that a blind baby is doubly handicapped in comparison to a sighted child because ______.
A．his world is completely dark
B．he can never make eye contact with other people
C．he has no visual stimulation from his surroundings
D．he can not perceive the world with his eyes
相关试题