一How dangerous it was!

—Yes，but for the young man’s quick action，he_________ run over by the car．

A．must have been

B．could have been

C．would be

D．might be

施工合同中索赔的性质属于( )。

A．经济补偿

B．经济惩罚

C．经济制裁

D．经济补偿和经济制裁