俄罗斯人口主要集中在( )
A:亚洲部分
B:欧洲部分
C:北冰洋沿岸
D:太平洋沿岸
There are many famous people ____ (talk) about their lives on this programme.
实现和维护劳动者权益,是社会主义制度的本质要求。维护劳动者合法权益的重要保证是( )
长江三角洲地区与城市带发育不相关的自然因素是 ( )