The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.<br>A:fresh water expansion tank<br>B:sea water expansion tank<br>C:thermostatic expansion valve<br>D:jacket water cooler accumulator

The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.
A:fresh water expansion tank
B:sea water expansion tank
C:thermostatic expansion valve
D:jacket water cooler accumulator

出自：海船船员证

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