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[Issue Essay]

试题详情

题目:

Analytical!

选项:

答案:

提问:

On his drive to work, Leo listens to one of three radio stations, A, B, or C. He first turns to A. If A is playing a song he likes, he listens to it; if not, he turns to B. If B is playing a song he likes, he listens to it; if not, he turns to C. If C is playing a song he likes, he listens to it; if not, he turns off the radio. For each station, the probability is 0.30 that at any given moment the station is playing a song Leo likes. On his drive to work, what is the probability that Leo will hear a song he likes? 这个题目的0.3为什末代指在A station 播放到了自己喜欢的?不太理解0.3到底指的是甚麽

解答:

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阅读172509
解答: 徐小梅

提问:

DS:2x^2+bx+8=0,只有一个实数根,求那个字母的值? 条件 1:b<0 条件 2:lxl>5 x的绝对值 请问陆老师,这道题选什么?谢谢

解答:

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阅读151761
解答: 陆旭老师

提问:

想请教一下陆老师,我觉得这道题应该是用相似三角形做,看了图觉得应该是用角1和角2相等来证明。但是由题干给的条件,我不知道如何得出角1和角2相等

解答:

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阅读151779
解答: 陆旭老师

提问:

请问老师图里的这道语法比较,不太明白,如何区分到底比较的是什么呢?谢谢

解答:

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阅读151505
解答: 金栩竹老师

提问:

请问May, 我这道题不知道怎样做?谢谢!

解答:

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阅读152306
解答: 徐小梅老师

提问:

请问May老师,请问这题选5 吗?

解答:

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阅读151787
解答: 徐小梅老师

提问:

请问May老师,条件1是对的吗?谢谢!

解答:

点赞0
阅读152344
解答: 徐小梅老师

提问:

请May老师作答。我算出来是330/7,不知道对不对。

解答:

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阅读152499
解答: 徐小梅老师

提问:

请问May老师,这道题应该选什么?谢谢

解答:

点赞0
阅读151133
解答: 徐小梅老师

提问:

请问May 老师,应该选哪个?谢谢

解答:

点赞0
阅读150665
解答: 徐小梅老师

提问:

请问May 老师,条件1是对的吗?

解答:

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阅读150391
解答: 徐小梅老师

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