_____the difficulties in talking, they can understand each other by body language.( )
A:Regardless of
B:Although
C:Though
D:In spite
我国城镇居民的住房面积已达到人均____平方米,农村的____也发生了巨大的变化。
形成上海与杭州的“同城效应”的最主要条件是( )