列车运行图中竖直线表示（）。
A、车站中心线
B、时间
C、列车运行线
D、列车
参考答案：B
_____ are her _____. [ ]
A. This, brother
B. These, brother
C. These, brothers
120. --- ________ are your business hours?
--- From 9:00 a.m. to 5:00 p.m.
A．What
B．How
C．Which
D．Where
