TPO 26 阅读第2篇 第11题According to paragraph 7, what special adaptation helps the ostrich cope wi

11. According to paragraph 7, what special adaptation helps the ostrich cope with hot desert conditions? A. Each of its feathers is very short and dense.B. Its wings produce only lateral air movement when flapping.C. Its feathers are very thickly set on both its back and its wings.D. It can make its feathers stand up on its back.Paragraph 7 is marked with ◆

该题对应第七段第二句和第三句，第三句说当炎热的时候，ostrich 会竖起它们背上的羽毛，所以正确答案是 D。选项 A 说 feather 短，原文说的是 long but not too dense ，不对。选项 B 不对，没提到 feather，原文明确指出 the sparse distribution of the feathers allows considerable lateral air movement。选项 C 不对，原文只是说 not too dense，没说是 back 和 wings 是否都 thick。

没看懂什么意思？