When a vessel sounds three short blasts on the whistle, this indicates that _________.(1.0)
A.danger is ahead B.her engines are going astern C.the vessel is not under command (broken down) D.all other vessels should stand clear正确答案B
When a vessel sounds three short blasts on the whistle, this indicates that _________.(1.0)
A.danger is ahead B.her engines are going astern C.the vessel is not under command (broken down) D.all other vessels should stand clear正确答案B
