the force of pressure gradients in the water surrounding the sea snake exceeds that of vertical pressure gradients within its circulatory system
这个问题提示作用实在是太强了,问为什么sea snake放进水里 distribution of blood没变化的原因,答案要想正确至少得围绕什么谈过?必须跟水有点关系啊!我们来看选项
A 和水没关系,杀
B 和水有关系,留
C 和水没关系,杀
D 和水没关系,杀
E 和水有关系,留
B说的是压力对血管的影响,E说两种不同的压力哪个大,你问的是压力对distribution of blood的影响,选哪个?显然是B.这就是问题的作用,对问题理解的比较精确,对原文的依赖就少.
Question #27. 147-07 (22496-!-item-!-188;#058000147-07)
The author suggests that which of the following is a disadvantage that results from the location of a snake\'s heart in close proximity to its head?
(A) A decrease in the efficiency with which the snake regulates the flow of blood to the brain
(B) A decrease in the number of orientations in space that a snake can assume without loss of blood flow to the brain
(C) A decrease in blood pressure at the snake\'s midpoint when it is tilted at various angles with its head up
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