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这个是新题，没找到别人的解释，只好麻烦NN们了  碰到类似的题目总是傻眼，每次都是靠蒙的说
Networks of blood vessels in bats' wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus paleontologists' recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding. In the passage, the author develops the argument by(A) forming the hypothesis that best explains several apparently conflicting pieces of evidence (B) reinterpreting evidence that had been used to support an earlier theory (C) using an analogy with a known phenomenon to draw a conclusion about an unknown phenomenon (D) speculating about how structures observed in present-day creatures might have developed from similar structures in creatures now extinct (E) pointing out differences in the physiological demands that that flight makes on large,as opposed to small, creatures
我选的B... (A) forming the hypothesis that best explains several apparently conflicting pieces of evidence (B) reinterpreting evidence that had been used to support an earlier theory (C) using an analogy with a known phenomenon to draw a conclusion about an unknown phenomenon (D) speculating about how structures observed in present-day creatures might have developed from similar structures in creatures now extinct (E) pointing out differences in the physiological demands that that flight makes on large,as opposed to small, creatures
我选的B... 89. The argument in the passage relies on which of the following assumptions? (A) Sandactylus would not have had networks of blood vessels in the skin of its wings if these networks were of no use to Sandactylus. (B) All creatures that fly by flapping their wings have networks of blood vessels in the skin of their wings. (C) Winged dinosaurs that flapped their wings t ,, in flight would have been able to fly more effectively than winged dinosaurs that could only glide. (D) If Sandactylus flew by flapping its wings, then paleontologists would certainly be able to find some evidence that it did so. (E) Heat generated by Sandactylus in flapping its wings in flight could not have been dispersed by anything other than the blood vessels in its wings. 这题A选项我开始觉得是正确的，但是当我看到D选项的时候觉得更正确...请问D选项有什么错误的地方嘛? 这题A选项我开始觉得是正确的，但是当我看到D选项的时候觉得更正确...请问D选项有什么错误的地方嘛?
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发表于 2008-11-6 23:55:00
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