China is developing fast. That's ________ I think those of my colleagues who dea

题干

China is developing fast. That's ________ I think those of my colleagues who deal with China affairs should visit China.

A．because	B．why
C．when	D．how

上一题下一题 0.64难度单项选择更新时间:2014-03-28 11:39:47

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