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！

想问下为什么选D 中间没有连接词感觉好怪

请教小梅老师 这个题目 我算的90 为什么不对呢 102这个按照正常列公式该咋列呢？ 谢谢老师

小梅老师请问这道题的几种变体怎么区分呢？ 1）no boy stands btw girls是指BBB和GGG必须在一块是嘛？ GBBG这种也是不允许的嘛？ 2）它和no boy stands btw 2 girls有什么区别嘛？ 3）三男三女排一行 两两隔开又和前面有什么区别

请教39题 谢谢小梅老师

老师 请教一下39和40题 39应该怎么做呢？有点没思路 40是选择E吗老师 谢谢老师！

请问一下唐瑭老师，老师上逻辑课举的试验田的例子，C选项：两块试验田的形状不同，这个是无关的，如果改成：两块试验田的形状不同，但形状也会影响产量，那这个是有关还是无关呢？为什么呢？

请唐塘老师分析一下这道题，我感觉题目中问的是杂志新政策和intended effect之间的关系，我感觉五个选项都无关，老师可以分析一下五个选项吗？谢谢

请唐塘老师分析一下这道题，谢谢，看不懂最后一句话的内容，不知道文章最后一句话的重心是什么

请唐塘老师分析一下这道题，谢谢

这道题C感觉是对的因为可以降低运输成本增加收益