–Who should be responsible for the accident?

-The boss, not the workers. They just carried out the order                  .

A．as told

B．as are told

C．as telling

D．as they told

ECD_U2高压共轨喷油系统主要由高压输油泵、（）、喷油器、控制单元（ECU）、传感器等组成。

A.共轨油道

B.高压油管

C.高压喷油泵

D.供油拉杆