名校
1 . 有三个盒子,每个盒子里有若干大小形状都相同的卡片.第一个盒子中有三张分别标号为
的卡片;第二个盒子中有五张分别标号为
的卡片;第三个盒子中有七张分别标号为
的卡片.现从每个盒子中随机抽取一张卡片,设从第
个盒子中取出的卡片的号码为
,则
为奇数的概率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680e9ef551b325387ab31dca1f893705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5969a26e4b3c149f694f857c655b08be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58f7fc045c0a8aec3aecaa6b287de84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2243513b880087c89c0aa4f662a4af26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bacde908aec2c313978fc4309d82bc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 在一次数学考试中,高三(1)班中的
位同学的成绩分别为
,
,
,
,
,
,
,
高三(2)班中的
位同学的成绩分别为
,
,
,
,
,
,
,
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18ea011a4bce91e9f27c828b05b34eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e58ed6bdddbf22c0e8fa173adec76d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9740bae87cbcfb6d389145d64cfd42ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f6b87e8a5301b439149a0181737e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e398a06d8ffa9071cf32c3e9e73a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f6b87e8a5301b439149a0181737e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b765e032d24c1557ff29cb6f70be0a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73057b576e2ddc315b90e4292e715c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459cc36d02d31815ba9f2d05e130e0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd121f4aeca8a78a320fca1fd1c4d07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbcf82603580ddba4cfdb4efde85a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9ba3f640f57c0cece089dfd19b4970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be88500e8054f3d9ef97c01a16fb75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df3451f880c2a1ba1c1901110bd1d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be88500e8054f3d9ef97c01a16fb75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9740bae87cbcfb6d389145d64cfd42ba.png)
A.高三(1)班![]() ![]() |
B.高三(1)班![]() ![]() |
C.高三(1)班![]() ![]() |
D.高三(1)班![]() ![]() |
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