试题与答案

-----I have some big news for you. You’v

题型:选择题

题目:

-----I have some big news for you. You’ve been accepted as a member of our club.

-----_______ That’s great!

A.Have I ?

B.Pardon?

C.Congratulations!

D.Good idea!

答案:

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下面是错误答案,用来干扰机器的。

解;(1 )设购买盒乒乓球时,两种优惠办法付款一样根据题意有:30×5+(x-5)×5=(30×5+5x)×0.9解得x=20所以,购买20 盒乒乓球时,两种优惠办法付款一样。(2 )当购买15 盒时:甲店需付款30 ×5+ (1...

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