单项选择题

Scientists believe that color blindness is a(n) （） defect, and there is no cure of it.

A. induced
B. original
C. primitive
D. inherited

<上一题 目录 下一题>
热门 试题

单项选择题
（36）（）

A. to
B. for
C. in
D. with
单项选择题
Old Americans are extremely reluctant to buy on（）and likely to save as much money as possible.

A. debt
B. credit
C. deposit
D. sale
相关试题