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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

解答:

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阅读229126
解答: sysadmin

提问:

请数学老师讲解 什么叫整数角?没有小数点的不都是整数角吗?我已经忘了勾股定理了 这个题怎么确定?

解答:

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阅读231215
解答: ken@boost.org.cn老师

提问:

请数学老师讲解思路,抛物线上的y轴交点为什么是3?一些基础知识我也忘了,请老师一起说下,谢谢。

解答:

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阅读230952
解答: ken@boost.org.cn老师

提问:

请数学老师讲解下 这里面的思路我不太明白 第三次落地是不是就加到0.73二次方x 我每次都计算出800

解答:

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阅读231594
解答: ken@boost.org.cn老师

提问:

请数学老师讲解 这个条件1我懂。条件2计算量好大。有什么快点的方法

解答:

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阅读232148
解答: ken@boost.org.cn老师

提问:

请数学老师讲解思路,根号10我也只能估算出是3.a 感觉计算量好大 短时间完不成

解答:

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阅读232385
解答: ken@boost.org.cn老师

提问:

请数学老师讲解下 谢谢

解答:

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阅读234776
解答: ken@boost.org.cn老师

提问:

请数学老师解答下思路。为什么截距是2方程就是可以设为y=k(x-2)

解答:

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阅读232864
解答: ken@boost.org.cn老师

提问:

请数学老师帮我讲下这类题的思路

解答:

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阅读233004
解答: ken@boost.org.cn老师

提问:

还请金老师帮忙解答,谢谢,在讲现在分词的作用时,有两个句子:please answer the question using another way及look at the people lying on thethe beach.不是说现在分词不能做谓语,这两个句子的主谓结构能帮忙分析下吗,谢谢

解答:

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阅读232792
解答: 金栩竹老师

提问:

王文静老师您好,这套题目我不太懂选项B红色字体部分为什么不对,然后released in 2009,这里面的released是动词还是形容词?bringing、winning的造句为什么不对?这道题的考点是哪个?非常感谢

解答:

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阅读236654
解答: 王文静老师

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