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[Issue Essay]

试题详情

题目:

Analytical!

选项:

答案:

提问:

His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age ( in which great ice sheets had existed in now currently temperate areas. ) A in which great ice sheets had existed in now currently temperate areas B in which great ice sheets existed in what are now temperate areas C when great ice sheets existed where there were areas now temperate D when great ice sheets had existed in current temperate areas E when great ice sheets existed in areas now that are temperate 答案是D,错选了B。BD纠结,不知道该如何判断。第二遍做这道题还是把握不好句意,麻烦老师讲解。

解答:

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阅读247324
解答: sysadmin

提问:

请may老师回答

解答:

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阅读266801
解答: 徐小梅老师

提问:

求问此题的解题思路:已知整数0到k的乘积能被735整除。 问:k的最小值是多少?

解答:

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阅读266526
解答: 徐小梅老师

提问:

请教一下may老师第26题

解答:

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阅读266983
解答: 徐小梅老师

提问:

请教一下may老师第8题

解答:

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阅读266579
解答: 徐小梅老师

提问:

请教一下may老师23题

解答:

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阅读266431
解答: 徐小梅老师

提问:

求问此题的解题方法:符合k,k+2,k+4三个数都是质数的set有多少个?(k>1) 答案有:0, 1,2,3,>3。请问May老师这种题型该怎么求解呀?谢谢!

解答:

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阅读266557
解答: 徐小梅老师

提问:

从阴影中任取一点,问y小于x的概率是多少?

解答:

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阅读267289
解答: ken@boost.org.cn老师

提问:

想问一个数学题,有一组数,问能否确定range? 1. mean is given 2. standard deviation is given

解答:

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阅读267427
解答: ken@boost.org.cn老师

提问:

7/15寂静:所有员工都大于20岁. Of the 2000 employees, is the avg age at least 35? 1. 50% 员工是大于40岁 2. 25% 员工是大于65岁 这道题网上有C和E两种争论;我所不明白的点是:条件2中的25%是否包含在条件1的里面;我觉得答案应该是C。因为:35*2000=70000岁;(1)+(2)可得41*500+66*500+21*1000=74500>70000.不知道我的思路是否正确。谢谢老师的答疑!

解答:

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阅读266959
解答: 徐小梅老师

提问:

【请May老师回答】这题鸡精提供的答案是D 可是我觉得第二个条件不能得出呢 假设n三次方是x平方 除以n平方 是可以得到x/ n 平方 但是x/n 不一定是整数呀?

解答:

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阅读270838
解答: 徐小梅老师

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