给出如下四个命题:①把二进制数
化为十进制数,结果为
;②将一组数据中的每个数据都加上或减去同一个常数后,平均值不变,方差不变;③从装有完全相同的
个红球和
个黄球的盒子中任取
个小球,则事件“至多一个红球”与“都是红球”互斥且对立;④若“
”为假命题,则
、
均为假命题.其中正确的命题的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2833861a60f7bb3e6f2bdd148e7a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e595b1cc755cf0dd076e91cf9e9a3e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
更新时间:2020-11-12 11:54:07
|
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】下列命题中,正确的命题序号是__________ .(请填上所有正确的序号)
①已知
,两直线
,则“
”是“
”的充分条件;
②“
”的否定是“
”;
③“
”是“
”的必要条件;
已知
,则“
”的充要条件是“
”
①已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a8c4eb822aeb591ceacfe8a7aaa11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64aad3dfdb9d446296373c989737a8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661e3f38c635165582128b423b80adb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a5d6aeeed1250e42abd1fb455c45ac.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9f75608aaf8ae4677a6f0740e27c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8dfe5ea3165fdcddf0183babc753b4.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a188830d4a19ae16756a4654ce19dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d4ddce9328423cd5d4eccea55e24b9c.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685cdef78f98eb0eec9932e4570de636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1626c7ade7f1122922623ab98dd5f144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbad1965409ff62c4e25c9cebc5fb4d8.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
【推荐2】已知两条不重合的直线
,
与两个不重合的平面
,
,若
,
,则下列四个命题:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209323a7a4d015f7e570ec578c1731f7.png)
①若,则
; ②若
,则
;
③若,则
; ④若
,则
.
其中真命题为
您最近一年使用:0次