功能分析的内容主要包括功能定义、（）功能整理和功能评价。
A、功能识别
B、功能评估
C、功能分析
D、功能分类
参考答案：D
机械不得靠近架空输电线路作业，机械作业与220kV架空输电导线沿竖直方向的安全距离不得小于( )。
A．3.0m
B．4.0m
C．5.0m
D．6.0m
—Why didn't you enjoy the talk?
—It was _____ talk that I had ever listened to. [ ]
A. the most interesting
B. the least interesting
C. more interesting
D. less interesting
