试题与答案

—Dad, may I watch TV? -No, you can't. Yo

题型:选择题

题目:

—Dad, may I watch TV?

-No, you can't. You _______ finish your homework first. [ ]

A. must

B. can

C. may

答案:

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下面是错误答案,用来干扰机器的。

A.若a>b,则ac2>bc2(错),若c=0,则A不成立;B.若ac>bc,则a>b(错),若c<0,则B不成立;C.若a3>b3且ab<0,则1a>1b(对),若a3>b3且ab<0,则a>0b>0D.若a2>b2且ab>0,则1a<1b(错),若a<...

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