按照君主掌握权力的大小，君主立宪制可分为（）
A.一元君主制
B.二元君主制
C.共和君主制
D.虚位君主制
E.议会君主制
参考答案：A, E
--- “Where have you been?”
--- “I got caught in traffic; otherwise _____ sooner.”
A．I would be here
B．I have been here
C．I had been here
D．I would have been here
常采用虹吸法吸取上清液。适用于固体物含量高的料液的粗分离（）
A.沉降分离
B.离心分离
C.常压滤过
D.减压滤过
E.加压滤过
