无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

<pre id="ecnra"><acronym id="ecnra"></acronym></pre>

<ruby id="ecnra"><xmp id="ecnra"></xmp></ruby>

<ruby id="ecnra"><xmp id="ecnra"></xmp></ruby>

<em id="ecnra"></em>

單項選擇題

After the engine is warned, we should（） the turning gear before starting up the engine.

A.take in
B.put in
C.take out
D.put up

你可能感興趣的試題

單項選擇題

After passing through the turbine the exhaust gas is conducted out into the（）.

A.intercooler
B.compressor
C.cylinder
D.open air

單項選擇題

After fitting back in place the gear wheels, dont forget （） them.

A.to grease
B.greasing
C.oiling
D.lubricating

<ruby id="vxot4"><xmp id="vxot4"></xmp></ruby>