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E的确是经典混淆选项. 可是OG的解释只说this point is not addressed - 说了等于没说... 哪位NN可以分析一下？ Networks of blood vessels in bat's wings serve onlu to disperse heat generated in flight. This heatis generated only because bats flap their wings. Thus paleontologist's recent discovery that the winged dinosaur Sandactylus had similar networks of bloos vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding. What is the assumption? E) Heat generated by sadactlus in flapping its wings in flight culd not have been dispersed by anything other than the blood vessels in its wings.
[此贴子已经被作者于2008-4-14 1:45:31编辑过] | 
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发表于 2006-10-31 11:51:00
