(1.5 分)
When using radar, the officer in charge of the navigational watch shall act in accordance with _________.
A.the necessity to comply B.the COLREGs C.the effective use of the equipment D.the provisions on the use of radar正确答案D
(1.5 分)
When using radar, the officer in charge of the navigational watch shall act in accordance with _________.
A.the necessity to comply B.the COLREGs C.the effective use of the equipment D.the provisions on the use of radar正确答案D
