Some people maintain that watching violence on TV is one of the major causes of ______ behavior

and crime in society.

[ ] 

A. childish

B. artificial

C. aggressive

D. heroic

按照国际金融市场的通常做法，采取配售方式，承销商可以将所承销的股份以协议收购方式向特定的投资者配售。( )