If x is a positive integer, is the remainder 0 when (3x + 1)/10?
(1) x = 3n + 2, where n is a positive integer.
(2) x > 4
答案是E
可是我觉得当X=4n+2时 remainder是0 3n+2必然不是啊 所以该选A才对的呀
不知道是不是
谢谢喽 嘿嘿^_^
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