【SAT官方每日一题】2012年7月17日（Mathematics > Standard Multiple Choice ）

滚吧肥汤圆UID: 3272378

考试类型: Mathematics > Standard Multiple Choice


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Read the following SAT test question and then click on a button to select your answer.
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' l& [0 T+ e  z# `7 q/ F& gIf  and  , and if , which of the following is true?

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A.
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C.

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E.  
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正确答案:D
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4 }9 y( M! ^: l) I7 t  G- V4 y" `解析:
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3 s# X, p" K+ {* Z% j, D( iIf and , and if , then rewriting as  gives . It follows that , and so . This last equation is equivalent to .