找考题网-背景图
单项选择题

A.Very few people have the sensitivity of the blind.B.B……

What is the main idea of the first paragraph


A.Very few people have the sensitivity of the blind.
B.Blind people can manage to see things ,but only vaguely.
C.The eyes are not the only way of seeing.
D.It is possible to localise the photo sensitive areas of the body.