精选优质文档-倾情为你奉上II. 完形填空：（每题1.5分，共30分）You either have it, or you dont -a sense of 16 , that is. But 17 is it that some people could find their way across the Sahara without a map, while others can 18 themselves in the next street?Scientists say were all 19 with a sense of direction, 20 it is not properly understood how it works. One theory(理论) is that people with a good sense of direction have worked hard at 21 it. Research being 22 out at Liverpool University
