Smar系统的FP302是将()。
A、电流信号转换为电压信号
B、气动信号转换为总线信号
C、电压信号转换为总线电流信号
D、总线信号转换为气动信号
参考答案:D
______ of the workers in the computer factory is about two thousand, and ______ of them are women workers.
A.The number; second third
B.A number; three quarters
C.A number; half second
D.The number; two thirds
自行式起重机吊装时,提升钢丝绳与铅垂线间夹角通常不大于()度
A、3
B、5°
C、8°
D、10°