For a moment nothing happened Then _____   all shouting together.

A．voices had come

B．came voices

C．voices would come

D．did voices come

大宗笨重货物远距离运输时，应尽可能地利用（　　）

A．水运或铁路运输

B．公路或铁路运输

C．航空或水路运输

D．水路或公路运输