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[Issue Essay]

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题目:

Analytical!

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提问:

Years before the advent of plate tectonics―the widely accepted theory, developed in the mid-1960's, the holds that the major features of Earth's surface are created by the horizontal motions of Earth's outer shell, or lithosphere―a similar theory was rejected by the geological community. In 1912, Alfred Wegener proposed, in a widely debated theory that came to be called continental drift, that Earth's continents were mobile. To most geologists today, Wegener's The origin of Continents and Oceans appears an impressive and prescient document, containing several of the essential presumptions underlying plate tectonics theory: the horizontal mobility of pieces of Earth's crust; the essential difference between oceanic and continental crust; and a causal connection between horizontal displacements and the formation of mountain chains. Yet despite the considerable overlap between Wegener's concepts and the later widely embraced plate tectonics theory, and despite the fact that continental drift theory presented a possible solution to the problem of the origin of mountains at a time when existing explanations were seriously in doubt, in its day Wegener's theory was rejected by the vast majority of geologists. Most geologists and many historians today believe that Wegener's theory was rejected because of its lack of an adequate mechanical basis. Stephen Jay Gould, for example, argues that continental drift theory was rejected because it did not explain how continents could move through an apparently solid oceanic floor. However, as Anthony Hallam has pointed out, many scientific phenomena, such as the ice ages, have been accepted before they could be fully explained. The most likely cause for the rejection of continental drift―a cause that has been largely ignored because we consider Wegener's theory to have been validated by the theory of plate tectonics―is the nature of the evidence that was put forward to support it. Most of Wegener's evidence consisted of homologies―similarities of patterns and forms based on direct observations of rocks in the field, supported by the use of hammers, hand lenses, and field notebooks. In contrast, the data supporting plate tectonics were impressively geophysical―instrumental determinations of the physical properties of Earth garnered through the use of seismographs, magnetometers, and computers. 我选了E considerable overlap前面是despite XXX说明这个是个成就,他和后面的反对W的观点的事情是相反的。所以感觉D说用这个词的目的是解释为啥W理论。请老师辨析DE!谢谢!

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解答: 张慧雯

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解答: 金栩竹老师

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2

解答:

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解答: 郭培月老师

提问:

as, since和when的用法区别

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解答: 郭培月老师

提问:

看不懂,错选C

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解答: sysadmin老师

提问:

正确选项E取非怎么理解(我后来直接加强倒是想懂了)

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解答: sysadmin老师

提问:

如何解这两道题呢?

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解答: sysadmin老师

提问:

What is the median number of employees assigned per project for the projects at Company Z? 1, 25 percent of the projects at Company Z have 4 or more employees assigned to each project. 2,35 percent of the projects at Companny Z have 2 or fewer employees assigned to each project.

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解答: sysadmin老师

提问:

18!能被6整出,但不能被6的N+1次方整除,问n是多少? 解释说求的18!有8个6的因子,哪八个阿?

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解答: sysadmin老师

提问:

原文我读到:不诚实就难达成政治compromise,结论是不诚实可以说明运作良好。 最后我剩下了A和C两个选项,A的意思是“达成Compromise不一定说明运作良好”;C的意思是“选民有其他判断标准”。 当时我的反应是“C中说到选民,跟原文意思关系较近”。 想听听老师的解题思路,以及我思路的问题。 谢谢老师。

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解答: sysadmin老师

提问:

原文 我是这么理解的 想让我解释为什么水藻擅长在慢流速水生长但是却在极度干旱的情况下(非常慢的水流速) 死翘翘 。 我觉得ABCDE 都无法解释 这个现象。。 D选项在说 什么在澳大利亚会经历一个完全的干旱然后又恢复。我感觉跟没说一样啊。 不知道是如何解释原文的 还希望老师解答 ^.^

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解答: sysadmin老师

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