A.碰撞;風災(zāi) B.觸礁或擱淺、火災(zāi)或爆炸 C.沉沒;其他 D.A+B+C
A.1/5000 B.1/25000 C.1/40000 D.1/50000
A.倒流 B.回流 C.倒水 D.滯流