单选题The meat box temperature control circuit, as used in ship service refrigeration system, is an example of （）Atwo position controlBsignal speed floating controlCproportional controlDreset control
单选题
The meat box temperature control circuit, as used in ship service refrigeration system, is an example of （）
A
two position control
B
signal speed floating control
C
proportional control
D
reset control
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