在"提高公房租金"的城镇住房制度改革中，把房租分为（）。

A.市场租金

B.商品租金

C.成交租金

D.成本租金

E.福利租金

More and more people were gathering there. He ________ his way through the crowed and rushed into the burning house.

A．armed

B．shouldered

C．handed

D．headed