解吸过程是根据各组份在不同温度下的（）
A.溶解度
B.相对挥发度
C.蒸气压
参考答案：B
地貌指地表面上的固定性物体，如房屋、道路等。（）
By the time we _____ to the cinema, the film _____. [ ]
A. got, began
B. have got, had begun
C. got, had begun
D. had got, began
