还是奥赛题
12.在C语言中,判断a不等于0且b不等于0的正确的条件表达式是( ) A. !a==0 || !b==0 B. !((a==0)&&(b==0))
C. !(a==0&&b==0) D. a && b
答案竟然是d,谁知道为什么,我觉得是b呀?
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