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[Issue Essay]

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题目:

Analytical!

选项:

答案:

提问:

这道数学题 我想问问数学老师为什么我的两个方法答案都不对 首先 我理解这道题是问事件M或者R只发生一个的概率 我的第一个方法就是用M发生*R不发生+M不发生*R发生 这样哪里出错了 需要怎么改呢? 我的第二个方法是用总体减去M和R同时发生的概率再减去M和R都不发生的概率,这里哪里出错了 要怎么改呢? 谢谢老师的回答!

解答:

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阅读162523
解答: 徐小梅

提问:

麻烦老师讲一下

解答:

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阅读132977
解答: sysadmin老师

提问:

老师,没看懂题目,麻烦讲解一下。

解答:

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阅读132719
解答: sysadmin老师

提问:

老师,这个题设两个都喜欢的人数=两个都不喜欢的人数为x,那喜欢a的就是4x,喜欢b的也是4x。总人数就等于x+4x+4x-x吗

解答:

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阅读132649
解答: sysadmin老师

提问:

老师,麻烦讲解一下。

解答:

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阅读132343
解答: sysadmin老师

提问:

老师,麻烦讲解一下。

解答:

点赞0
阅读130263
解答: sysadmin老师

提问:

老师,麻烦讲解一下。

解答:

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阅读130189
解答: sysadmin老师

提问:

老师,这个题的思路里,p(r)那个式子不应该是等于 —1/24吗

解答:

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阅读129813
解答: sysadmin老师

提问:

老师,麻烦讲解一下。

解答:

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阅读129987
解答: sysadmin老师

提问:

老师,麻烦讲解一下。

解答:

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阅读130565
解答: sysadmin老师

提问:

It is an oversimplified view of cattle raising to say that ( all one has to do with cattle is leave them alone while they feed themselves, corral them, and to ) drive them to market when the time is ripe. (A) all one has to do with cattle is leave them alone while they feed themselves, corral them, and to (B) all one has to do with cattle is to leave them alone to feed themselves, to corral them, and (C) all one has to do with cattle is leave them alone while they feed themselves and then corral them and (D) the only thing that has to be done with cattle is leave them alone while they feed themselves, corral them, and (E) the only thing that has to be done with cattle is to leave them alone while they feed themselves, to corral them, and 答案是C,看到原文all one的时候很困惑,不知道指什么,再看到后面的they feed themselves直接就把A排除了,感觉指代有问题,然后竖着扫了一下,发现ACDE都是这种表达,而且B乍一看太平行了,尽管句末少了一个to,当时的想法是 就算有to也不敢选,因为不确定to leave them alone to feed themselves是否改变了句意,所以就不知道该选什么了。麻烦老师讲解。

解答:

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阅读130366
解答: sysadmin老师

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