1956年,波兰发生了两个重大的事件,它们是()
A.波兹南事件
B.边界事件
C.二月事件
D.卡廷事件
E.十月事件
参考答案:A, E
— My dog's really fat.
— You ________ have given her so much food. [ ]
A. wouldn't
B. can't
C. shouldn't
D. mustn't
什么是利息保障倍数?