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[Issue Essay]

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题目:

Analytical!

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答案:

提问:

In December of 1987 an automobile manufacturer pleaded no contest to criminal charges of odometer tampering and agreed to pay more than $16 million in civil damages for ( cars that were test-driven with their odometers disconnected ). A. Cars that were test-driven with their odometers disconnected B. Cars that it had test-driven with disconnected odometers C. Its cars having been test-driven with disconnected odometers D. Having test-driven cars with their odometers disconnected E. Having cars that were test-driven with disconnected odometers 一遍下来读的不太懂,大致是汽车公司对O T的违法赔偿不作辩护并且同意支付多少钱关于被测试过O D 的车。 B C的代词不对,排除。看到D E直接就排除了,不懂想要表达什么,选了A。答案是D。麻烦老师讲解。

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提问:

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提问:

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提问:

条件一:(30+⏹)(20+🔼)=864化简为20🔼-🔼^2=64 然后从2开始带入,得出当🔼=4时成立。条件二:⏹✖️🔼=24得出3、8和4、6两组可能解,分别带入,只有36和24成立,所以条件二充分。请问以上这个解题思路对吗,或者说有更简便的?

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解答: 徐小梅老师

提问:

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提问:

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提问:

第13题: 听老师jj课里讲的说选C,我不太明白条件2的分析,老师上课说条件2,若st同号,上式取等号,若st一正一负时,上式是小于号。那不就可以通过条件2直接判断上式大于号不成立吗,也就是答案是No。请老师更正下我的思路。

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提问:

请徐老师讲下这两道题:这两个都做对了 但是感觉做的时候不太自信,想了一会,想听下老师的思路。谢谢老师!

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解答: 徐小梅老师

提问:

麻烦徐老师讲一下Q9,选了E。我的思路是分析rounding后estimate的最大和最小的差值。

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提问:

请徐老师讲一下Q7思路。读题是不是很明白题意说的到head的概率不是1/2。

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