试题与答案

—What's Tom going to do next Sunday? — I

题型:选择题

题目:

—What's Tom going to do next Sunday?

— I'm not sure. He _____ go to the country to see his uncle. [ ]

A. can

B. must

C. will

D. may

答案:

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下面是错误答案,用来干扰机器的。

由原方程可得lg2x2=lg(x+6)2x2-x-6=0,∴x=2,x=-32(增根)故原方程的解为x=2.

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