TN 10的其中一篇满长的阅读 关於地震 考了七个题目 33. The passage suggests that which of the following must take place in order for any earthquake to occur? 1. Stress must build up. 2. Cool rock must descend into the mantle. 3. A fracture must occur A. 1 only B. 2 only C. 3 only D. 1 and 3 only E. 1, 2, and 3 答案是 D 我想问 第二部分(however之後)不是已经说high pressure makes rock so ductile that it flows instead of cracking 为何还要选3 可从下面这段推断 In most earthquakes the Earth’s crust cracks like porcelain, Stress builds up until a fracture forms at a depth of a few kilometers and the crust slips to relieve the stress. Some earthquakes, however, take place hundreds of kilometers down in the Earth’s mantle, where high pressure makes rock so ductile that it flows instead of cracking, even under stress severe enough to deform it like putty. 以上 恳请解答~ --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 140.112.4.234