Mr. Wang never get up so early, _____?[ ]
A. does he
B. doesn't he
C. doesn't Mr. Wang
答案:A
西安事变发生后,中共派出与国民党在西安谈判的代表是( )
A.王若飞
B.董必武
C.刘 * *
D.周恩来
Gd3+含有几个不成对电子( )
A.1
B.3
C.5
D.7
E.9