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.

请数学老师解答 谢谢

请数学老师解答，谢谢

请数学老师解答 谢谢

请数学老师解答 谢谢

一家餐厅有A B两个list的side dishes，两个list都不重样，给出一共有18种搭配方式，问B list里有几个菜 条件1：AB一共有11个菜 条件2：A有2个菜 请数学老师解答 谢谢老师

一个圆内接长方形，问长方形周长是多少？ 条件1：圆半径为2； 条件2：长方形的一条边是2 请数学老师讲解，谢谢老师

请问下金老师，先通过主谓一致排除a，通过in doing sth “在哪方面干什么”意思不对排除ce，剩下bd怎么选择呢？感觉时态没法做选择，前面一个用using 一个用by the use of …使用过动词优于名词来最后选择b吗？

想请问Tina老师，这个题通过后面画线部分比较选项可以排出ad，cwith结构修饰主句主谓关系不恰当排除c，同位语be中summarize前面那群borrowers更好，但是be比较，我觉得e更好，因为that感觉又是引导一个如records这个名词的同位语解释说明什么样的一个热cords，但是答案选b，该怎么权衡呢？

请老师完整解答一下这道题解题思路，我选的A，认为后面是一个介词短语修饰语。

王文静老师你好，就这道题目，我特地查了字典，with可以表示一件事情的factor和这件事情的关系的，换句话说，C选项我读到with，我第一反应就是自动就理解为后面的两个条件（factor）是导致output tripled的原因，所以认为这句话即处理了因果关系也表达了两个factor之前的并列关系。麻烦老师指出我的语法理解问题