使用时序数据进行经济计量分析时,要求指标统计的()。
A.对象及范围可比
B.时间可比
C.口径可比
D.计算方法可比
E.内容可比
参考答案:A, B, C, D, E
_______ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
A.What
B.Though what
C.In spite of what
D.However what
已经定座但列入候补在客票“定座情况”栏填写()
A、RQ
B、RL
C、NS
D、SB