九寨沟景区内原有藏族居民一千余人,他们中大部分是什么民族的?
参考答案:
藏族
Where is my watch? I _______ it.
A.might lose
B.must have lost
C.would have lost
D.should have lost
设备开箱时,如何判断供货来得仪表是否合格?