在C++中,判断a等于0或b等于0或c等于0的正确的条件表达式是
!((a!=0)||(b!=0)||(c)!=0)
!((a!=0)&&(b!=0)&&(c)!=0)
!(a==0&&b==0)||(c)!=0)s
(a=0)&&(b=0)&&(c)=0
