Which of the following may lead to the engine NOT to start on air?（）
- Astarting air pressure too high
- Bcorrect timing of starting air valves
- Cthree of the six starting valves stuck
- Dthe turning gear disengaged
问题
Which of the following may lead to the
参考解析：
分类：船舶动力装置题库,海船船员考试题库
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