A full-flow 50μm filter is installed ,（） so the injection system components on the main engine are safeguarded.
- Aas close to the main engine as possible
- Bas close to the main pump as possible
- Cjust before the fuel valve
- Djust before the booster pum
问题
A full-flow 50μm filter is installed ,
参考解析：
分类：船舶电气与船舶安全题库
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