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[Issue Essay]

试题详情

题目:

Analytical!

选项:

答案:

提问:

In recent years cattle breeders have increasingly used crossbreeding, (in part that their steers should acquire certain characteristics) and partly because crossbreeding is said to provide hybrid vigor. (A) in part that their steers should acquire certain characteristics (B) in part for the acquisition of certain characteristics in their steers (C) partly because of their steers acquiring certain characteristics (D) partly because certain characteristics should be acquired by their steers (E) partly to acquire certain characteristics in their steers 看到划线后的and就想到平行,然后就错选了D,答案是E,不理解为什么,请老师讲解一下。谢谢!

解答:

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阅读320654
解答: sysadmin

提问:

请may老师回答

解答:

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阅读267061
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266786
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267243
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266839
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266691
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266817
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267549
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267687
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267219
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271098
解答: 徐小梅老师

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