【单选题】The carburetor is placed on the engine to ______.
A.
distribute the gasoline
C.
properly lubricate the engine
D.
assist in priming the cylinders
【多选题】内连接一般用inner join或join关键字来指定。主要包括( )等类型。
【单选题】The mixture of the gasoline engine is provided by a carburetor.
【简答题】活塞顶部的形状与混合气形成方式,燃烧室设计和发动机压缩比大小有关,下面4个选项中的活塞实物图,哪些是典型的汽油机活塞?A. B. C. D.
【单选题】Fuel is admitted to a diesel engine cylinder through the _____.
【单选题】What device on an engine cleans the air before it enters the carburetor?