下列哪些箱体属于集装箱车辆。（）
A、台架式
B、通风式
C、冷藏式
D、敞顶式
参考答案：A, B, C, D
If a firm announces an unexpectedly large cash dividend, the efficient market hypothesis (EMH) would predict which of the following price changes at the announcement（）
A. An abnormal price change to occur before the announcement.
B. An abnormal price change to occur at the time of the announcement.
C. A gradual price change to occur for several weeks after the announcement.
—Why didn't you answer my telephone yesterday?
—Sorry. I _______ a bath. [ ]
A. took
B. take
C. am taking
D. was taking
