从历史上看,世界上存在()等国家结构形式。
A.共和制
B.单一制
C.联邦制
D.邦联制
E.君主制
参考答案:B, C, D
— Did you have a wonderful time at the ball last night?
— __________! I’ve never had a more wonderful time all my life.
A.You bet
B.No problem
C.Don’t mention it
D.Got it
巴图蒙克达延汗出生于()年。