In terrestrial environments, gravity places special demands on the cardiovascular systems of animals. Gravitational pressure can cause blood to pool in the lower regions of the body, making it (5)difficult to circulate blood to critical organs such as the brain. Terrestrial snakes, in particular, exhibit adaptations that aid in circulating blood against the force of gravity. The problem confronting terrestrial snakes is best (10) illustrated by what happens to sea snakes when removed from their supportive medium. Because the vertical pressure gradients within the blood vessels are counteracted by similar pressure gradients in the surrounding water, the distribution of blood (15) throughout the body of sea snakes remains about the same regardless of their orientation in space, provided they remain in the ocean. When removed from the water and tilted at various angles with the head up, however, blood pressure at their midpoint (20) drops significantly, and at brain level falls to zero. That many terrestrial snakes in similar spatial orientations do not experience this kind of circulatory failure suggests that certain adaptations enable them to regulate blood pressure more effectively in those (25) orientations. 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 (30) 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 (35) 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. When (40) climbing, arboreal snakes often pause momentarily to wiggle their bodies, causing waves of muscle contraction that advance from the lower torso to the head. By compressing the veins and forcing blood forward, these contractions (45) apparently improve the flow of venous blood returning to the heart.
非nn。。 1.关于the areas in which they were located 2.关于benefit line 10"one town'striumph could become...."结合line12-13"this zero-sum game"=题目中"before the high-tech..."
非nn。。 1.关于the areas in which they were located 2.关于benefit line 10"one town'striumph could become...."结合line12-13"this zero-sum game"=题目中"before the high-tech..."
最近进度不大一样，所以小菜一直米有来饭饭姐这里，不好意思哈~ 我现在在补看饭饭姐的帖子，我发现我有一句话不大懂，关系到第六篇的30题，就是这句话：Although this approach was preferable to victimizing other geographical areas by taking their jobs
最近进度不大一样，所以小菜一直米有来饭饭姐这里，不好意思哈~ 我现在在补看饭饭姐的帖子，我发现我有一句话不大懂，关系到第六篇的30题，就是这句话：Although this approach was preferable to victimizing other geographical areas by taking their jobs
最近进度不大一样，所以小菜一直米有来饭饭姐这里，不好意思哈~ 我现在在补看饭饭姐的帖子，我发现我有一句话不大懂，关系到第六篇的30题，就是这句话：Although this approach was preferable to victimizing other geographical areas by taking their jobs
Q26: 文章主旨题：文章是想通过研究已有的策略来进行对经济发展模式的评价 A：high-tech只是所有经济模式中的一种 B：private sector属于无关信息 C：文章提出了问题，但是没有进行评论 D：文章仅仅对first two进行了examine，但是并没有对于第三个，只是说第三个是个可行的方案 E：符合原来的假设，正确 Q27： inference 细节题，定位在第二个例子之前，注意industry模式的有点和缺点 A：这个没有提到，属于文章外的信息了 B：没有信息 C：正确，文章指出工厂可以给当地带来收益，但是会给另外的地方带来悲剧 D：没有提到这个信息（虽然后面的例子有提到关于high-tech员工的例子，但是不可以联想） E：没有提到这个 Q28：tone 问作者的态度 OG给出例子：to answer this question about the author’s attitude,look at what the author says when evaluating the ways local governments try tostimulate economic growth. A:不属于三个group里面 B：有弊端 C：正确，作者宣扬的只有他的好处 D：有弊端 E：作者没有提到 Q 29： supporting idea 细节题，考察当地的企业家，例子三 根据企业家的例子来判断。 Q30： supporting idea 细节题，考察例子二 HT的企业的优点就是克服了例子一中的缺点，因此由此定位可得。
-- by 会员 h14zpsn (2012/3/2 3:07:40)
nn分析的真犀利，不过小菜想请教nn一个问题哈，关于27题，我感觉第一个策略是2个地方通过税收刺激和能升迁，来发展制造业，如此一来，肯定有一个地方tragedy了。 那，这里有两个问题哈： 1，c中的which they were located的这个地方是胜利方？因为他们吸引来了制造业，所以对于制造业，这里（即胜利方）就是他们现在located的地方是这个意思吗？ 2，c中说benefit，小菜比较菜，没有感觉出来哪里有benefit的意思，求nn敲打~
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发表于 2012-2-26 02:09:04
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