What does the woman ask the man to do
[A] She asks him to stand up.
[B] She asks him to sit down.
[C] She asks him to wait.

测量仪表的（）一般与被测介质直接接触，感受被测量，并基于某种物理效应把被测量转换成相应机械的、电的或其他形式的易于传递、测量的信号，完成对被测参数信号形式的转换。

A.变换环节

B.检测元件

C.显示环节

D.传输环节