题目

It was April 29, 2001 ____ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony. A.that     B.when      C.since     D.before   答案：B我国领土最南端位于A. 黑龙江与乌苏里江汇合处 B. 帕米尔高原C. 漠河以北黑龙江主航道中心线 D. 曾母暗沙