---I’m terribly sorry for having hurt your dog.

--- _________ You didn’t mean it.

A．Don’t mention it .

B．You are welcome.

C．Just forget it.

D．You should have been more careful.

管线加油车平台设有（），当平台因故无法停止时可让加油车熄火失去动力。

A.平台防撞装置

B.紧急降落阀

C.自动回位阀

D.紧急熄火按钮