单选题There is () in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.Aa setting tankBa service tankCa head tankDan expansion joint

单选题
There is () in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.
A

a setting tank

B

a service tank

C

a head tank

D

an expansion joint


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