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SAT I 每日一问:2013年9月16日

沪江英语 2013-09-17 00:09
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Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer. 

If , which of the following must be equivalent to ?

(A) 

(B)

(C) 

(D) 

(E) 

答案见下一页>>>

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