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！

请数学老师讲解 什么叫整数角？没有小数点的不都是整数角吗？我已经忘了勾股定理了 这个题怎么确定？

请数学老师讲解思路，抛物线上的y轴交点为什么是3？一些基础知识我也忘了，请老师一起说下，谢谢。

请数学老师讲解下 这里面的思路我不太明白 第三次落地是不是就加到0.73二次方x 我每次都计算出800

请数学老师讲解 这个条件1我懂。条件2计算量好大。有什么快点的方法

请数学老师讲解思路，根号10我也只能估算出是3.a 感觉计算量好大 短时间完不成

请数学老师讲解下 谢谢

请数学老师解答下思路。为什么截距是2方程就是可以设为y=k(x-2)

请数学老师帮我讲下这类题的思路

还请金老师帮忙解答，谢谢，在讲现在分词的作用时，有两个句子：please answer the question using another way及look at the people lying on thethe beach.不是说现在分词不能做谓语，这两个句子的主谓结构能帮忙分析下吗，谢谢

王文静老师您好，这套题目我不太懂选项B红色字体部分为什么不对，然后released in 2009，这里面的released是动词还是形容词？bringing、winning的造句为什么不对？这道题的考点是哪个？非常感谢