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.

想问下为什么选D 中间没有连接词感觉好怪

请教小梅老师 这个题目 我算的90 为什么不对呢 102这个按照正常列公式该咋列呢？ 谢谢老师

小梅老师请问这道题的几种变体怎么区分呢？ 1）no boy stands btw girls是指BBB和GGG必须在一块是嘛？ GBBG这种也是不允许的嘛？ 2）它和no boy stands btw 2 girls有什么区别嘛？ 3）三男三女排一行 两两隔开又和前面有什么区别

请教39题 谢谢小梅老师

老师 请教一下39和40题 39应该怎么做呢？有点没思路 40是选择E吗老师 谢谢老师！

请问一下唐瑭老师，老师上逻辑课举的试验田的例子，C选项：两块试验田的形状不同，这个是无关的，如果改成：两块试验田的形状不同，但形状也会影响产量，那这个是有关还是无关呢？为什么呢？

请唐塘老师分析一下这道题，我感觉题目中问的是杂志新政策和intended effect之间的关系，我感觉五个选项都无关，老师可以分析一下五个选项吗？谢谢

请唐塘老师分析一下这道题，谢谢，看不懂最后一句话的内容，不知道文章最后一句话的重心是什么

请唐塘老师分析一下这道题，谢谢

这道题C感觉是对的因为可以降低运输成本增加收益