单项选择题
A.remained B.still C.no longer D.much mere
（） is the actual value of the controlled condition.A.De...
单项选择题（） is the actual value of the controlled condition.
A.Desired value B.Set value C.Measured value D.Deviation
Which of the following marine examples belongs to the o...
单项选择题Which of the following marine examples belongs to the open loop control system?（）
A.Accommodation heating system B.Steering gear C.Boiler control D.Cargo control
The operation of （） two alternators requires the voltag...
单项选择题The operation of （） two alternators requires the voltages to be equal and also in phase.
A.paralleling B.series-mounting C.running D.control
