97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<ruby id="m7yql"><output id="m7yql"></output></ruby>

單項(xiàng)選擇題

In a （） engine the charge of air in the cylinder before compression commences is above atmospheric pressure.

A.pressure charged
B.naturally aspirated
C.contaminated
D.high speed diesel

你可能感興趣的試題

單項(xiàng)選擇題

If there is water in fuel oil, the revolution of the engine will （）.

A.decrease
B.increase
C.be dismantled
D.be reassembled

單項(xiàng)選擇題

If the sump（）were to rise this would indicate water leakage into the oil an d an investigation into the cause must be made.

A.temperature
B.viscosity
C.lever
D.level