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！

请英吉老师看一下我这道作文题的找错和论证有什么不足，谢谢！

麻烦唐瑭老师讲解一下这道题的做题思路 谢谢～

麻烦唐瑭老师讲解一下 这道题AC选项以及为什么定位最后一句可以的到A 谢谢～

麻烦金老师讲一下这题C选项，分号后面的句子中is算不算谓语？ 再麻烦老师讲一下这句话意思 谢谢～

麻烦老师分析一下这道bf题 谢谢～

请老师解答一下这个ir题，感觉像加速度有关的物理题，但我忘记公式了

请老师在纸上写一下这道题的过程，谢谢！

英吉老师您好，请问您能够给我解读一下这篇阅读吗？谢谢@英吉

May老师好…117题是一道机经题…请问E为什么不可以。谢谢！

麻烦老师从头到尾讲下这个题，也不太明白为啥CD的choose sb for heading不行，以及C选项的as为啥不行，我记得语法课上讲as是=，在这个题里面Meri…这个人也可以等于这次expedition的head啊，是不是我as的理解有问题，麻烦您详细纠正/指点下，谢谢