With some books badly needed _____, she went to the bookstore hurriedly．

A．to buy

B．buying

C．bought

D．having bought

铁路槽车发生初期火灾，应立即停止装卸，同时用（）或槽车盖将罐口盖上，使用就近的消防器材进行扑救。

A.石棉毯

B.干砂

C.水袋

D.砂袋