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[Issue Essay]

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题目:

Analytical!

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提问:

Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, favored due to their enhancement of reproduction or survival, but that they are simply random by-products of other evolutionary developments. (A) due to their enhancement of reproduction or survival, but that they are (B) due to the reproduction or survival they enhance, but they are (C) because they enhance reproduction or survival, but (D) because they enhance reproduction or survival, but are (E) because of enhancing reproduction or survival, but are

解答:

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解答: 王文静

提问:

老师,我今天考试碰到的寂静题,一模一样!然后根本算不出来啊,两个式子结合是30x=5y.不知道寂静答案是怎么算出来x=15 y=90的?

解答:

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解答: ken@boost.org.cn老师

提问:

请May老师解答~ 老师,您回复我的这一题,关于圆心角 和 圆周角,我有几个问题想问: 1. ABC是一个优弧,优弧的圆心角是怎么看的呢?为什么是∠BOC,而不是∠AOC呢? 2. 此图中,(优弧)弧ABC 和 (劣弧) 弧AC是否有同一个圆心角 和 同一个圆周角呢? 如果不是,老师可否分别把此图中 优弧与劣弧的圆心角和圆周角画一下? 2. 优弧ABC所对应的圆周角 是∠E(我用红笔加上去的那一个)吗?

解答:

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阅读286940
解答: 徐小梅老师

提问:

请May老师解答,想问一下鸡精的答案是不是错了?我的解答过程有没有问题?

解答:

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阅读284004
解答: 徐小梅老师

提问:

请May老师解答,这题没有头绪

解答:

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阅读283455
解答: 徐小梅老师

提问:

请May老师解答

解答:

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阅读283044
解答: 徐小梅老师

提问:

请May老师解答

解答:

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阅读282463
解答: 徐小梅老师

提问:

请May老师解答

解答:

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阅读282608
解答: 徐小梅老师

提问:

请May老师解答

解答:

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阅读283016
解答: 徐小梅老师

提问:

请May老师解答

解答:

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阅读283244
解答: 徐小梅老师

提问:

请May老师解答

解答:

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阅读281522
解答: 徐小梅老师

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