单选题As to the low speed diesel engine, if you want to change the coolant flow for a certain cylinder, you can regulate （）.Athe inlet valveBthe outlet valveCboth the inlet valve and the outlet valveDthe pump inlet valve
单选题
As to the low speed diesel engine, if you want to change the coolant flow for a certain cylinder, you can regulate （）.
A
the inlet valve
B
the outlet valve
C
both the inlet valve and the outlet valve
D
the pump inlet valve
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