行为主义学派创始人是()
A.冯特
B.塞里
C.西蒙
D.坎农
E.华生
参考答案:E
染色体存在于细胞的______中,它的主要成分是______和蛋白质.
The Wright brothers continued their flying in France and ______ all who saw them.
A.saddened
B.frightened
C.astonished
D.alarmed