欢迎来到牛牛题库网 牛牛题库官网
logo
搜索
全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(轮机专业) > 轮机英语 > 船舶电气与船舶安全

单项选择题

A fire starts when the following （） factors come together.

A.combustible material
B.ignition source
C.oxygen
D.A and B and C

点击查看答案&解析
上一题 目录 下一题

相关考题

单项选择题
（） can be operated independently or locked together and operated as a twin-job cranes of double capacity.

A.Two derricks
B.A derrick and a crane
C.Two cranes
D.A crane and a winch
单项选择题
Some cranes are mounted in pairs on a common platform which can be rotated through（）.

A.360°
B.270°
C.180°
D.90°
单项选择题
Deck cranes require（） time to prepare for working cargo than derricks.

A.less
B.more
C.many
D.much
微信小程序免费搜题

All Rights Reserved 版权所有©牛牛题库网(nntiku.com)

备案号：湘ICP备2022003000号-1

微信扫一扫,加关注免费搜题

微信扫一扫,加关注免费搜题