The _________must be able to give full attention to the keeping of a proper lookout and no other duties shall be undertaken or assigned which could interfere with that task.(1.0)
A.officer B.lookout C.sailor D.helmsman正确答案B
The _________must be able to give full attention to the keeping of a proper lookout and no other duties shall be undertaken or assigned which could interfere with that task.(1.0)
A.officer B.lookout C.sailor D.helmsman正确答案B
