精选优质文档-倾情为你奉上专题十六 阅读理解之科普类说明文1.【2015湖北卷】DThe oddness of life in space never quite goes away. Here are some examples.First consider something as simple as sleep. Its position presents its own challenges. The main question is whether you want your arms inside or outside the sleeping bag. If you leave your arms out, they float free in zero gravity, often giving a sleeping astronaut the look of a funny balled （芭蕾）dancer. “Im an inside guy,” Mike Hopkins says, who returned from a six-mo
