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[Issue Essay]

试题详情

题目:

Analytical!

选项:

答案:

提问:

老师您好能否帮我讲解下下面这个文章考试时该如何读,我读完这种文章压根不知道在说什么,只知道在讲ocean basin形成机制的几种理论。No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given. The traditional view supposes that the upper mantle of the earth behaves as a liquid when it is subjected to small forces for long periods and that differences in temperature under oceans and continents are sufficient to produce convection in the mantle of the earth with rising convection currents under the mid-ocean ridges and sinking currents under the continents. Theoretically, this convection would carry the continental plates along as though they were on a conveyor belt (conveyor belt: n. 传送带) and would provide the forces needed to produce the split that occurs along the ridge. This view may be correct: it has the advantage that the currents are driven by temperature differences that themselves depend on the position of the continents. Such a back-coupling, in which the position of the moving plate has an impact on the forces that move it, could produce complicated and varying motions. On the other hand, the theory is implausible because convection does not normally occur along lines, and it certainly does not occur along lines broken by frequent offsets (an abrupt bend in an object by which one part is turned aside out of line) or changes in direction, as the ridge is. Also it is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean. This plate is growing on both sides, and since there is no intermediate trench, the two ridges must be moving apart. It would be odd if the rising convection currents kept exact pace with them. An alternative theory is that the sinking part of the plate, which is denser than the hotter surrounding mantle, pulls the rest of the plate after it. Again it is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the American plate has a sinking part. Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates. This last theory is attractive because it gives some hope of explaining the enclosed seas, such as the Sea of Japan. These seas have a typical oceanic floor, except that the floor is overlaid by several kilometers of sediment. Their floors have probably been sinking for long periods. It seems possible that a sinking current of cooled mantle material on the upper side of the plate might be the cause of such deep basins. The enclosed seas are an important feature of the earth’s surface, and seriously require explanation because, in addition to the enclosed seas that are developing at present behind island arcs, there are a number of older ones of possibly similar origin, such as the Gulf of Mexico, the Black Sea, and perhaps the North Sea.

解答:

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阅读238986
解答: 郭培月

提问:

麻烦金帮我解答一下这一题,我的思路是看主语“T的风格和选择”,先不看破折号里面的修饰内容,然后根据主谓一致排除了ACD ,然后看BE,然后就没什么思路,这题是考时态,还是比较?就是关于这个AS AS 我知道的点是它一半用于同级比较,然后根据as 后面的代词去接着判断?

解答:

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阅读236220
解答: 金栩竹老师

提问:

三个因子怎么得出X=a²,请在详细推理一下,不是很懂

解答:

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阅读235905
解答: ken@boost.org.cn老师

提问:

老师,这道题根据您的答案,定义应该是1000=2的9次方乘以X。 但是这样的话这个X就不能是整数了,不符合上面92题的定义呀。 所以没想明白,觉得应该还是1000=2*2*2*5*5*5。选E

解答:

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阅读234589
解答: ken@boost.org.cn老师

提问:

从条件1看,p也可以等于32呀! 32是2的5次方,所以的质数可以写成1和2,同时为了满足>1的条件。只是只能是2,所以不能准确推理呀 只有当两个条件合起来,p是33或35时才能满足。因此应该选C不是A

解答:

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阅读234627
解答: ken@boost.org.cn老师

提问:

请数学老师说下思路

解答:

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阅读234989
解答: ken@boost.org.cn老师

提问:

张老师你好,这道题目我不太懂C为什么错。因为这道题目我的方法是直接定位到黄色highlight部分,然后看这句话的前后句子,因为前面一句话看着好像比较无关,我就重点看了后面一句话,说了这些guilds的women是有legal和economic的privileges ,所以我一看C就对了。然后正确答案是A,不太懂怎么才能选对,也不理解c为什么是错的,虽然A看了这句话也对,但是考试的时候做这种题目我为了节约时间通常都是只看highlight附近的句子的,求指教!然后这类型的题目大概难度系数是多少?谢谢

解答:

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阅读238593
解答: 张慧雯老师

提问:

老师,请问这倒是题目的考点是什么!C选项中哪里错了?我理解的是with it的it指带不清楚,求老师指教!谢谢!

解答:

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阅读237307
解答: 金栩竹老师

提问:

which of the following about the insects from which animals acquire carotenoids?老师您好怎么判断这句话是倒装呢?我理解的意思就是昆虫从动物获取carotenoids

解答:

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阅读237064
解答: 张慧雯老师

提问:

麻烦金老师帮我解决下这一道题,此句的核心语意是A这个人开始翻译 I 这个作品,后面一个同位语从句进一步解释这个工作花了多少年和S对它的评价。根绝a work that and that 这个平行结构先排出了 A E ,然后C 答案的 had taken 和 began 时间点上是冲突的,先开始了,才有完成的事,所以had taken 过去完成时在这里用法不正确。对比B D ,文学批评家S 宣称最好的译品;文学批评家S宣称它做为最好的译品。。我觉得后者更好,尽管有一瞬间也纠结了IT的指代问题,麻烦老师帮我辨析一下,正确答案B“S宣称最好的作品in。。”感觉话没说完整。

解答:

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阅读236414
解答: 金栩竹老师

提问:

请问老师,这里的reduced by 150,是减到150,还是剪了150

解答:

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阅读235996
解答: ken@boost.org.cn老师

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