美国总统罗斯福在二战中说：“我们必须成为民主制度的伟大兵工厂。对我们来讲，这是同战争本身一样严重的紧急状况。”美国能够成为“民主制度的伟大兵工厂”与下列哪一事件密切相关

A．工业革命

B．新经济政策

C．罗斯福新政

D．杜鲁门主义

My goodness, how lucky we are! If there had been p1aces for us on the aero plane, we _______ dead

now. [ ]

A. will be

B. would be

C. would have been

D. had been