≠,不等于,即后面叙述的非命题.
如x≠2,即x可以取除了2以外任何的数.
猜你喜欢
- 1If you want to be _(health),you must do sports2.
- 2犯了一个愚蠢的错误用英语怎么说
- 3They invited us to go to the party.H___we didn't go.
- 4把3堆煤平均分成成7堆.每堆占3吨煤的几分之几,每堆煤重几分之几,3堆煤相当于3吨的几分之几,3堆煤重几分之几,5堆煤重几分之几,6堆煤是全部的几分之几.求答!
- 5比较叶绿素,叶黄素和胡萝卜素三种色素的极性,为什么?
- 6He is f______ tous all.We all like him very much
- 7(2/3加4/15乘以5/6)÷20/21能简便要用简便计算
- 8懂语文的进来,急
- 9一.用简便方法计算下面各题 1.18又9/20除以9 2.6.13-2/3-1/3+0.87 3.(5/24+7/12-2/3)*48
- 10氨气和氯气的反应方程式