这道题正确答案是 B， 我一直觉得是D, 不是特别明白 B 答案为什么 说as effectively as sea snakes can? One such adaptation is the closer proximity of the terrestrial snake's heart to its head, which helps to ensure circulation to the brain, regardless of the snake's orientation in space. The heart of sea snakes can be located near the middle of the body, a position that minimizes the work entailed in circulating blood to both extremities. In arboreal snakes, however, which dwell in trees and often assume a vertical posture, the average distance from the heart to the head can be as little as 15 percent of overall body length. Such a location requires that blood circulated to the tail of the snake travel a greater distance back to the heart, a problem solved by another adaptation. 20. It can be inferred from the passage that which of the following is true of species of terrestrial snakes that often need to assume a vertical posture? (A) They are more likely to be susceptible to circulatory failure in vertical postures than are sea snakes. (B) Their hearts are less likely to be located at the midpoint of their bodies than is the case with sea snakes. (c) they cannot counteract the pooling of blood in lower regions of their bodies as effectively as sea snakes can. (d) the blood pressure at their midpoint decreases significantly when they are titled with their heads up.

请问may老师，这题该用什么思路来做？

请问张老师，这道题为什么D不对？我有我觉得second paragraph最后一句话特别指向D

请问老师，这道题为什么second part是”evidence”? 还有、不确定First part到底是background info还是premise?

请问老师，这道quant题应该如何快速算？

请问老师，这题我选E因为前面作者讲过 “asset sharing alliances aim at cost efficiencies”。我以为inference题目一般都要找原文来选答案。请问这个思路哪里不对了吗？

怎么解出

第二问里的most of 怎么界定啊，四个里有两个也能是most of 吗

为什么答案是C啊，第二个式子取n=1是不对的吧

1990-2005年 zyx的乡村地区能喝到干净水的人增加。很明显是国家提高了基础设施建设。寻找一个反对这个推理 感觉五个选项没有一个是对的，我选的b我知道它不对 但是d选项我推不出来，想听相关性解法

能理解a 不知道b为什么也可以