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标题: 一道数学题 [打印本页]

作者: 星月多多    时间: 2002-10-24 20:02     标题: 一道数学题

Which number in set P have a value greater than that of every other member of set P,if all the members of set P are negative integers?
(1)Each member of set P is the product of -1 and a prime number.
(2)At least one member of P is even.
我选E,因为我觉得可能是-1,或-2

[em06][em06][em06]
作者: tongxun    时间: 2002-10-24 20:08

A
因为1不是质数。
作者: 星月多多    时间: 2002-10-24 20:11

哦,我就要确认这个,呵呵:)
作者: tongxun    时间: 2002-10-24 20:34

我坚持这个想法。
作者: 星月多多    时间: 2002-10-25 00:44

什么想法?:)
答案选C,
因为1只说了Each member of set P is the product of -1 and a prime number,并不是说和所有的质数,所以应该还要加上2条件,才能确定
作者: tongxun    时间: 2002-10-25 00:48

我改口了,就是你现在的答案。




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