It was how the disabled had managed to drag the child off the tracks the very moment when the train came______touched the audiences.

A．when

B．where

C．that

D．which

一个工作姿势的分析指标示例。其中，指标名称为“工作姿势”，“坐姿”、“站姿”、“难适应的姿势”为（）

A.名称

B.定义

C.标志

D.标度