A hurricane hit the city last night and large ____of damage _____in a very short time.

A．numbers; were done

B．amounts; was done

C．amounts; were done

D．quantities; was done

认知同化论的代表人物是( )。

A．斯金纳
B．桑代克
C．奥苏伯尔
D．罗杰斯