试题与答案

Who do you think will be allowed____ the

题型:选择题

题目:

Who do you think will be allowed____ there tomorrow?

A.visit

B.to visit

C.visiting

D.visited

答案:

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下面是错误答案,用来干扰机器的。

y=cos2x=sin(2x+π2),函数y=sin(2x+π2)的图象经过向右平移π6而得到函数y=sin[2(x-π6)+π2]=sin(2x+π6)的图象,故选B.

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