单选题当活塞顶部、环及环槽中积存带色的灰状物质时,是由()导致,它将引起缸套严重磨损。A燃油中杂质B气缸油中添加剂C燃油燃烧不良D气缸油氧化
单选题
当活塞顶部、环及环槽中积存带色的灰状物质时,是由()导致,它将引起缸套严重磨损。
A
燃油中杂质
B
气缸油中添加剂
C
燃油燃烧不良
D
气缸油氧化
参考解析
解析:
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