___we admit that there are still some problems about NMET, we don’t mean that it

题干

___we admit that there are still some problems about NMET, we don’t mean that it’s of no use.

A．While

B．Until

C．As

D．Unless

上一题下一题 0.85难度单项选择更新时间:2010-09-29 02:53:09

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