CRTSⅡ型板式无砟道床隧道地段道床结构由（）等部分组成。
A.轨道板
B.水泥乳化沥青砂浆充填层
C.混凝土底座
D.支撑层
参考答案：A, B, D
(2013·四川南充市第一次适应性考试)You look very beautiful in this dress and there is only one of this kind left here. I wonder if you would buy ________.
A．one
B．it
C．some
D．any
对公结售汇是指我行接受对公客户委托，为其办理（）同外币之间转换的业务。
A.外币
B.人民币
