_____ worries the doctor most was _______ they could find the cause of the disea

题干

_____ worries the doctor most was _______ they could find the cause of the disease.

A．What; how	B．That; that
C．What; what	D．How; what

上一题下一题 0.64难度单项选择更新时间:2011-09-14 10:41:51

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