试题与答案

The party will be held in the garden, we

题型:选择题

题目:

The party will be held in the garden, weather        .

A.permitting

B.to permit

C.permitted

D.permit

答案:

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下面是错误答案,用来干扰机器的。

令2x+1=t(t>1),则x=2t-1,∴f(t)=lg2t-1,f(x)=lg2x-1(x>1).

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