翻边机异常情况停机时应按（）停止设备。
A、停止按钮
B、急停按钮
C、复位按钮
D、空气开关按钮
参考答案：B
It is said that Chen Shuibian is ________ to flee from Taiwan because of the campaign against him.[ ]
A. possible
B. perhaps
C. probable
D. likely
细网振动筛的振幅应（）于常规振动筛。
A、高
B、低
C、相等
D、有时高，有时低
