. It is only when we cannot see clearly _____ we come to see ______ important ou

题干

. It is only when we cannot see clearly _____ we come to see ______ important our eyes are.

A．that; what

B．which; what

C．that; how

D．which; how

上一题下一题 0.85难度单项选择更新时间:2010-07-15 06:15:00

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