单选题
1分
The piston cooling system may employ similar components, except that _____is used instead of a head ...
The piston cooling system may employ similar components, except that _____is used instead of a head tank.
参考答案: D
参考解析: 注:活塞冷却系统可能采用类似的部件,除了使用泄水柜代替高置水箱。