___ we know some basic knowledge concerning AIDS, we can protect ourselves from being infected._刷题宝

题干

___ we know some basic knowledge concerning AIDS, we can protect ourselves from being infected.

A：If only

B：Even if

C：So long a

D：Unle

上一题下一题 0.0难度选择题更新时间:2013-01-29 04:56:46

答案(点此获取答案解析）

C

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