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SAT I 每日一问:2012年11月21日

沪江英语 2012-11-21 09:51
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Mathematics > Standard Multiple Choice

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

 for all integers 

If  is a function defined for all positive integers , and  satisfies the two conditions above, which of the following could be the definition of ?

(A)  (B)  (C)  (D)  (E)  

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