When Miss Smith asked me a few questions in class yesterday, my mind happened to be wandering. As a result, I had to give her awful ____________ responses.

A．offbeat

B．off-line

C．offhand

D．off-key

施工现场最能反映一个施工单位的总体水平，下面各项有关施工现场的说法中，错误的是（）。

A．施工现场是一面“镜子”，能照出施工单位的面貌

B．施工现场是“中心”，好坏均源于它

C．施工现场是处理各方关系的“焦点”

D．施工现场是各项管理工作联系的“纽带”