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

單項選擇題

The main generators are connected to（）.

A.distribution boards
B.section boards
C.emergency switch boards
D.main switch boards

你可能感興趣的試題

單項選擇題

UMS stands for（）.

A.ultra much space
B.universal medium system
C.unit machined space
D.unattended machinery space

單項選擇題

Oil mist detectors are usually used on board to detect oil mist density within （）.

A.the engine crankcase
B.the engine scavenge boxes
C.drain tanks
D.fuel tanks

<acronym id="i6gz6"><address id="i6gz6"><rp id="i6gz6"></rp></address></acronym>