输血一小题，求助~~（已解决）

serenashu · 发表于 2010-10-20 11:39:17

Q4:
For a nonnegative integer n, if the remainder is 1 when 2ⁿ is divided by 3, then which of the following must be true?

I.n is greater than zero.

II.3ⁿ = (-3)ⁿ

III.√2ⁿis an integer.

A.I only
B.II only
C.I and II
D.I and III
E.II and III

答案是E，为什么不能选1啊？

yigexiaosb · 发表于 2010-10-20 11:42:26

2的0次方是1 ，这样余数就是1

serenashu · 发表于 2010-10-20 11:45:49

2的0次方是1 ，这样余数就是1

-- by 会员 yigexiaosb (2010/10/20 11:42:26)

哦，短路了，谢谢LS~~

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