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.

请问这道题为什么选E啊，D选项错在哪里

这题答案是选A吗？条件一我带进去算是可以的，具体是怎么推出来的呢？

求唐老师解答一下, 您在明星蛋壳小班-逻辑-第一天-1小时28分左右, 用实验田的镁盐产量阐述"有关"与"无关"逻辑时, 讲到一个选项-"实验田形状"-同产量无关, 但是这里是否也可以理解成, "实验田的形状"同产量有关. 正如之前用到的一个例子-问"吃了什么?"-答""

请徐老师解答，谢谢，这题您看有除了图里那种套公式之外的做法吗，感觉我用插入法捆绑法也做不了，图里那种用公式套的方法感觉太死板没有真正理解题目

请问王文静老师这题的解题思路，谢谢老师

请问王文静老师这题的解题思路，谢谢老师

答案为B，为什么C不可以，but和because可以连用吗

请徐老师详细解答一下，谢谢，看这题是找因数，但是我看7 310 511 716 323这几个数之间也没有共同的因数啊，也没法把X提出来，因为最后30那项也没X，是不是这题出错了。。

这个题为啥不选E, E是平行结构啊，答案是D, D里面出现了but also不对吧？ 因为原题里没not only啊哈哈@唐老师

这道题我选D,答案选B, 答案不对吧，答案最后是these, 但是后面所接的原文是单数的问题private ownership, 所以。答案只能先把B排除了，老师请问这个题应该选什么？