题目

 Can you see that building ______ by trees? That’s ______ we study. A. surrounded; which                         B. surrounding; where C. to be surrounded; in which                     D. surrounded; where 答案：D 秦汉时期是我国统一的多民族国家奠基时期,主要表现为 ①民族联系形式多样,经济文化交流频繁  ②边疆管理进一步加强 ③边疆开发进一步加快     ④中原和边疆各族经济文化的共同发展 A.①②③          B. ②③④      C. ①②④      D. ①②③④