以下是引用stupybighead在2006-9-21 13:38:00的发言：207. If n=4p, where p is a prime number greater than 2, how many differnt positive even divisors does n have, including n Answer: 4 但是我就看到两个啊，2p和4p 208.S is a set contraining 9 different numbers. T is a set containing 8 different numbers, all of which are members of S.Which of the following statements CANNOT be true? Answer: The range of S is less than the range of T. 什么叫做the range? 另外有个statment：The range of S is equal to the range of T. 有可能么？ 多谢赐教 n=4p since p is prime number greater than 2, n 一定能被2，4除掉 加上你的2p, 4p, 所以有四个 这里的range应该是指最高数与最低数的距离。因为set T的全部numbers都是在set S, set S还有多一个号码，所以 set T的range最多能跟set S一样
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发表于 2006-9-21 13:38:00
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