《电业安全工作规程》中规定，凡在离地面高度大于（）的作业，视为高空作业。
A.0.5
B.1
C.2
D.2.5
参考答案：C
–Did you visit the 23rd National Books Expo last month?
–Yes, it was really ______. We saw many famous people, like Mo Yan, Ni Ping and Yu Dan.
A．excited
B．exciting
C．bored
D．boring
确定项目里程碑事件进度目标的是______。
A．总进度计划
B．总进度规划
C．详细进度规划
D．分项进度计划
