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[Issue Essay]

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题目:

Analytical!

选项:

答案:

提问:

Most of the world's supply of uranium currently comes from mines. It is possible to extract uranium from seawater, but the cost of doing so is greater than the price that uranium fetches on the world market. Therefore, until the cost of extracting uranium from seawater can somehow be reduced, this method of obtaining uranium is unlikely to be commercially viable. Which of the following would it be most useful to determine in evaluating the argument? A.Whether the uranium in deposits on land is rapidly being depleted B.Whether most uranium is used near where it is mined C.Whether there are any technological advances that show promise of reducing the cost of extracting uranium from seawater D.Whether the total amount of uranium in seawater is significantly greater than the total amount of uranium on land E.Whether uranium can be extracted from freshwater at a cost similar to the cost of extracting it from seawater

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解答: sysadmin

提问:

GMAT数学(博智教材)第62页:If X is equal to the sum of the even integers from 40 to 60, inclusive, and y is the number of even integers from 40 to 60, inclusive, what is the value of x+y? X=40+42+44......60=550 Y=(60-40)/2+1=11, 答案应该是561,为什么书后面的答案显示是560?

解答:

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解答: sysadmin老师

提问:

数学书61页36题,一个男的卖每条7块的领带和每件14元的衬衫。如果他总共卖了10件,110元,求卖了几条领带? 我得小数,选项里没有。

解答:

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阅读220594
解答: sysadmin老师

提问:

DS:5个数中 median 小于 average ;另外7个数也median 小于 average,然后这12个数没有重复的,12个数放在一个数集里面,问是不是median 小于average? 条件1:7个的average 小于 5个的average 条件2:7个的median 小于 5个的 median

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解答: sysadmin老师

提问:

DS:一个三位数xyz是9的倍数,问x+y+z=9? 条件1:x+y+z<15 条件2:x+y+z>8

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阅读219802
解答: sysadmin老师

提问:

question

解答:

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阅读219831
解答: sysadmin老师

提问:

这种ds题目里面有比例关系的我特别弱,老师能帮我梳理一下这种题拿到药怎么入手吗

解答:

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阅读219787
解答: sysadmin老师

提问:

老师这个题目帮我讲解一下,机经答案我看了还是不明白。

解答:

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阅读219825
解答: sysadmin老师

提问:

这个题目机经写的特别复杂,老师能帮我讲一下吗

解答:

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阅读219936
解答: sysadmin老师

提问:

老师,能帮我梳理一下这个题目吗

解答:

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阅读219811
解答: sysadmin老师

提问:

题目:of the 200 students at college T majoring in one or more of the sciences, 130 are majoring in chemistry and 150 majoring in biology. If at least 30 of the students are not majoring in either chemistry or biology, then the number students majoring in both biology and chemistry could be any number from a) 20 to 50 b) 40 to 70 c) 50 to 130 d) 110 to 130 e) 110 to 150 问题:这道题能理解到是用集合的知识点,但是无论怎么做都无法突破,得到最后结果。还请老师讲解。谢谢

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解答: sysadmin老师

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