主风机停机自保项目有（），（），（）润滑油压力低低报、动力油压力低低报、电机跳闸、超速。
参考答案：烟机轴位移超限、风机轴位移超限、持续逆流
—The shoes are very nice. I'll take them.
—But you must _______ first. I think the size is a bit small for you. [ ]
A. pay for them
B. try them on
C. put them on
D. Take them off
