不等式│x-2│>1的解集是[ ]A.x>3或x<1 B.x>3或x<-3 C.1<x<3
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不等式│x-2│>1的解集是 |
[ ] |
A.x>3或x<1 B.x>3或x<-3 C.1<x<3 D.-3<x<3 |
答案
A |
举一反三
不等式│x-2│>1的解集是 |
[ ] |
A.x>3或x<1 B.x>3或x<-3 C.1<x<3 D.-3<x<3 |
若代数式 的值是非负数,则x的取值范围是 |
[ ] |
A.x≥ B.x≥- C.x> D.x>-![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235415-61405.png) |
若代数式 的值是非负数,则x的取值范围是 |
[ ] |
A.x≥ B.x≥- C.x> D.x>-![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235350-37666.png) |
不等式3-y<3y+ 的解集是 |
[ ] |
A.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235344-97169.png) B.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235344-91139.png) C.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235345-73311.png) D.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235345-83873.png) |
不等式3-y<3y+ 的解集是 |
[ ] |
A.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235340-38752.png) B.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235341-14036.png) C.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235341-71861.png) D.y>![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012235341-83415.png) |
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