We hurried all the way to the airport, only ______ that the flight had been cancelled because of the foggy weather.

A．being told

B．to be told

C．having told

D．to have been told

以下属于企业的一般环境因素的是（）。

A、资源供应者

B、经济环境

C、竞争对手（顾客）

D、政府管理部门