1 . 给出命题:(1)对立事件一定是互斥事件.(2)若事件
满足
,则
为对立事件.(3)把
、
、
,3张红桃牌随机分给甲、乙、丙三人,每人1张,事件
:“甲得红桃
”与事件
:“乙得红桃
”是对立事件.(4)一个人打靶时连续射击两次,事件“至少有一次中靶”的对立事件是两次都不中靶.其中正确的命题个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1923f5564121ef892315d80ff8c4b845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67716ac738ee2911a69bf4063110a5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67716ac738ee2911a69bf4063110a5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67716ac738ee2911a69bf4063110a5bd.png)
A.4 | B.3 | C.2 | D.1 |
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A.4 | B.3 | C.2 | D.1 |