下列哪项不是席别的种类（）。
A.混编硬座
B.棚车
C.三人软包
D.一人软包
参考答案：C
假如我们要进行一次全国旅行，应选择什么地图作为导游图
A．中国地图
B．世界地图
C．江苏地图
D．大丰地图
Don't use words, expressions, or phrases only to people with specific knowledge. [ ]
A. being known
B. having been known
C. to be known
D. known
