When disassembling or assembling an injection pump plunger and barrel you should （）
- Akeep the parts immersed in diesel fuel
- Balways keep the plunger and barrel together
- Cwork over a linoleum-type surface
- Dall of the above
问题
When disassembling or assembling an in
参考解析：
分类：船舶电气与船舶安全题库
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