400-600-1123
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答案：
C
题干：如果
[X]表示的是比x大或等于的最小整数，那么请问[x]等不等于0?
注意：题干说的是[X]是整数，没说x是整数，即x有可能是小数。
解答：(1)当-1
(2)当x<0时，x可以是很多很多取值，所以不充分。
联立(1)(2)当-1
所以选C 
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