The math problem is so hard. I really don’t know .A．how to do itB．how to doC．w_刷题宝

题干

The math problem is so hard. I really don’t know .

A．how to do it

B．how to do

C．what to do it

D．where to do it

上一题下一题 0.85难度单选题更新时间:2013-12-29 05:24:58

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