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单选题
滑油分配系统包括管路、活门、温度调节器、控制系统等。
A
Distribution includes items such as plumbing, tank, temperature regulator, control systems, etc.
B
Distribution includes items such as plumbing, valves, temperature regulator, control systems, etc.
C
Distribution includes items such as plumbing, valves, pressure regulator, control systems, etc.
答案解析
正确答案：B
