某台湾旅行团要来大陆祭拜中华民族的“人文初祖”,他们应该去 ( )
A:黄帝陵
B:大禹陵
C:秦始皇陵
D:中山陵
During rush hours, the subway is always ____(太拥挤了以至于不能)get in. (too)
我国“五一、十一”黄金周,大批国内外游客前往四川九寨沟,这种现象属于( )