试题详情
- 单项选择题船舶了望的手段有:()
A、视觉
B、听觉
C、适合当时情况和环境的一切有效手段
D、A+B+C
- D
关注下方微信公众号,在线模考后查看
热门试题
- 回声探测仪()
- Cement wash is used
- Wire rope needs ()ca
- 除锈液和除锈膏等材料一般用于()除锈方法
- The sweepings and br
- 耙吸挖泥船在浪涌水域抛泥时宜采用顺流抛泥
- 耙吸挖泥船施工方法一般有:()
- ---Starboard 10! --
- “In no time” means (
- Please light the pil
- 用钢丝绳来配铁滑车,滑轮直径应不小于钢丝
- Take the tug towing
- 完舵()
- There are many kinds
- Course again!()
- We need plenty of ()
- spanner()
- black ball()
- You can’t use hooks
- --- Port five! ----