.

Thirty thousand yuan as well as hundreds of tons of food ______ to the flooded area.

A．have offered

B．has offered

C．have been offered

D．has been offered

以下措施不属于我国犯罪防控系统第二道防线的是( )

A．限制犯罪工具和手段

B．目标加固

C．倡导主文化遏制反文化

D．贵重物品标刻