单选题In a diesel engine, an integral liner is one in which the cooling water （） Ⅰ.flows through the cylinder liner jackets Ⅱ.touches the outer side of the linerAⅠ onlyBⅡ onlyCboth Ⅰ and ⅡDneither Ⅰ and Ⅱ
单选题
In a diesel engine, an integral liner is one in which the cooling water （） Ⅰ.flows through the cylinder liner jackets Ⅱ.touches the outer side of the liner
A
Ⅰ only
B
Ⅱ only
C
both Ⅰ and Ⅱ
D
neither Ⅰ and Ⅱ
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