各个竞争者的市场占有率同其市场营销力量之间应当（）。
A、成反比
B、相等
C、成平比
D、成正比
参考答案：D
— Why are you in such a hurry?
— My girlfriend _____ for Shanghai. I'm going to the airport to see her off. [ ]
A. is leaving
B. has left
C. was leaving
D. left
一般来说，银行的现钞卖出价( )外汇卖出价。
A．高于
B．低于
C．等于
D．不确定
