The meat box temperature control circuit, as used in ship service refrigeration system, is an example of （）<br>A:two position control<br>B:signal speed floating control<br>C:proportional control<br>D:reset control

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

出自：海船船员证

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