3. According to the passage, the skeleton of a pterosaur can be distinguished from that of a bird by the (A) size of its wingspan (B) presence of hollow spaces in its bones (C) anatomic origin of its wing strut (D) presence of hooklike projections on its hind feet (E) location of the shoulder joint joining the wing to its body 这题的B选项为什么不对? 原文中第三段最后两句:Both the pterosaurs and the birds have hollow bones, a feature that represents a savings in weight. In the birds, however, these bones are reinforced more massively by internal struts. 不是正好与B选项对应?哪位能给解释一下 -- by 会员 honeydd (2010/10/7 10:31:16)
楼上的mm,你自己不是都quote出来了么?就是根据你quote的这句话啊,说两个都有hollow spaces in its bones,那么既然两个都有,就不能根据这点来区分了呀。如果你考虑得是however后面的massive什么的strut,原文没有问题体现这个massive跟hollow space有关系啊,事实上很可能没关系。同一段的往下面看,就提到了grey‘s anatomy了。。。。 祝考试顺利 |