-----How long do you think it will be _____man can finally solve the problem of

题干

-----How long do you think it will be _____man can finally solve the problem of cancer?
------Well．it depends．

A．when

B．until

C．after

D．before

上一题下一题 0.65难度单项选择更新时间:2014-04-22 05:51:53

小学学科试题库

初中学科试题库

高中学科试题库