A. 支架或支脚筒 B. 轮胎 C. 垫木 D. 石块
A. ship in distress and assisting units B. NCS and RCC C. RCCs and „0n-scene commander‟ or “co-ordinator surface search” D. ship in distress and coast statio
A. 发生的频率 B. 风险原因 C. 损失大小 D. 处理方式