Transducers inside EEC change the pneumatic signals to electrical signals . The above sentence means "EEC内的变换器把电信号转换成气动信号．"
A.1
正确答案是B
Transducers inside EEC change the pneumatic signals to electrical signals . The above sentence means "EEC内的变换器把电信号转换成气动信号．"
A.1
正确答案是B