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下列命题中,正确的是( ). (A)若a>0,则a>1／a (B)若a>a2,则 >1 (C)若0a2 (D)若|a|=a,则a>0

A.
(A)若a>0,则a>1/a

【参考答案】

参考C

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M：You know I’m not too sure if the new salary will be high enough or even the new position is really what I want.Be sides，I like the work that I’m doing now.W：It sounds as though you’ve already made up your mind about what you are going to do.Q：What is the man thinking about？（）

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点(－7,m)和点(－8,n)都在直线y=－2x－6上,则m和n的大小关系是( ).(A)m>n. (B)m<n. (C)m=n.

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