名校
1 . 若
,
,
则下列结论:①
,②
③
④
,其中正确的个数是 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5deac798d7ef5de3e6d799d3690dd666.png)
![](https://img.xkw.com/dksih/QBM/2018/11/2/2066870013034496/2069154824699904/STEM/b2373e912af7425daa16c4d8ab1de8f4.png?resizew=12)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da880fccd5490abf574da77da9e04a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d702d8b5a3199747bf9700d536cebb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419e6948ab97d5de3d280c33a548d2ca.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad1dc610c2c010574f0fac671b584bb.png)
A.1 | B.2 | C.3 | D.4 |
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2018-11-05更新
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4卷引用:内蒙古通辽实验中学2018-2019学年高二上学期第一次月考数学(文)试题