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

<strike id="zkilw"><optgroup id="zkilw"></optgroup></strike>

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

單項選擇題

Once a fire is detected the engine should be slowed downOn no account （）.

A.the trunking should be opened up
B.should the trunking be opened up
C.the trunking should not be opened up
D.should the trunking not be opened up

你可能感興趣的試題

單項選擇題

On top of scavenging air box is mounted a strong cast iron frame for each cylinder known as（）

A.cooling jacket
B.cylinder liner
C.piston crown
D.cylinder cover

單項選擇題

On the top of the cylinder is mounted the cylinder cover which is pressed onto （） of the cylinder liner by means of nuts and studs.

A.the camshaft
B.the flange
C.the ridge
D.the bulge

<dl id="zjotp"></dl>