从l、2、3、……、n中,任取57个数,使这57个数必有两个数的差为l3,则n的最大值是多少?

从l、2、3、……、n中,任取57个数,使这57个数必有两个数的差为l3,则n的最大值是多少? A.106 B.107 C.108 D.109

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According to the text,Dollly Parton is__________.

According to the text,Dollly Parton is__________.A.a well—known surgeon B.a moth

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第55题答案是__________

第55题答案是__________A.Everything B.Something C.Anything D.Nothing

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第45题答案是__________

第45题答案是__________A.insists B.disagrees C.imagines D.hopes

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It is imperative that students__________their term papers on

It is imperative that students__________their term papers on time.A.hand in B.wo

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