挤压机、膨胀干燥机齿轮箱，无级变速器，润滑油电机与主机均设有（）润滑油泵停，主电机停。
参考答案：安全自动停车联锁装置
— What day is it today, Wednesdsy or Thursday?
— _______. It's Friday. [ ]
A. None
B. Either
C. Neither
D. Both
