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[ GMAT ]
討論串[計量] gwd 29-9
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A total of 100 customers purchased books at a certain bookstore last week.. If these customers purchased a total of 200 books, how many of the custome
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In the decimal representation of x, where 0 < x < 1, is the tenths digit of xnonzero?. (1) 16x is an integer.. (2) 8x is an integer.. 答案是B , 我也有大大的疑問.
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