城市道路网密度受( )等条件的影响。
A．绿化面积
B．交通分布
C．地形
D．人口密度
E．建筑及桥梁位置
参考答案：B,C,D
校长负责制
-I hear that you will be on travel again.
-Yeah. My boss ________ for me to discuss business details with someone from another company.[ ]
A．asked
B．arranged
C．sent
D．called
