还没有登录哦!

[Issue Essay]

试题详情

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:

点赞0
阅读229490
解答: sysadmin

提问:

老师例5,7的平方49,没有超过100啊,为什么不能选?

解答:

点赞0
阅读235451
解答: 徐小梅老师

提问:

老师,这道题你换了好几次思路,真的没听懂!谢谢!

解答:

点赞0
阅读235544
解答: 徐小梅老师

提问:

老师这道题没懂,我也不会拆分!

解答:

点赞0
阅读236299
解答: 徐小梅老师

提问:

老师这个是怎么解出来的?拆分?这么大的数不会拆哦

解答:

点赞0
阅读236161
解答: 徐小梅老师

提问:

老师,这里不懂条件1怎么算出来的, 40怎么来的?谢谢!

解答:

点赞0
阅读237233
解答: 徐小梅老师

提问:

PS:|nx-8|≤4,有多少个整数n使得恰好只有2个整数解x? 求问may老师

解答:

点赞0
阅读236248
解答: 徐小梅老师

提问:

老师,这里看不懂二分之Q减一是什么?

解答:

点赞0
阅读236933
解答: 徐小梅老师

提问:

老师例7的A怎么能成立呢?把2带进去,一个方程俩未知数啊?

解答:

点赞0
阅读237568
解答: 徐小梅老师

提问:

讨论的71那三个情况不是3的倍数?70那俩是三的倍数?213能被三整除啊,其他不能整除怎么70那些都是3的倍数呢?谢谢哦!

解答:

点赞0
阅读237478
解答: 徐小梅老师

提问:

我觉得这道题应该选E,因为当ab同时大于1,原命题成立,当ab同时大于0小于1,原命题不成立

解答:

点赞0
阅读235697
解答: ken@boost.org.cn老师

问个问题

点我领取
免费专项课程
在线咨询