国际顶尖MBA申请交流平台--TOPWAY MBA

标题: One DS from new oriental tests [打印本页]

作者: nina 时间: 2002-11-12 09:37 标题: One DS from new oriental tests

Section 20. Q19
Is n an integer?
1. n^2 is an integer.
2. 2 sqare is an integer.

The key is B. However, I choose D. Because if n^2 is an integer, n must be an integer. Is it right? If choice B is right, please give me some example.

Thanks.

作者: freebenben 时间: 2002-11-12 09:51 标题: B is right

Answer is B. example: if n=the square root of 3, than the square of n is 3, an integer.

作者: nina 时间: 2002-11-12 09:55

Thanks for your quick response. got it. good luck

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