混凝土常压蒸汽养护过程分为（）阶段。
A.早期蒸压
B.静停阶段
C.升温阶段
D.恒温阶段
E.降温阶段
参考答案：B, C, D, E
—What happened last night?
—There was a fire in the hotel. Luckily, it was soon ________.
A．put out
B．handed out
C．turned off
D．put off
企业的内部融资是支撑其核心流动资产的重要来源。()
