(1.5 分)
If the ship's radar is in trouble, the shore-based radar
A.may provide the ship of her position B.should be installed with surveillance systems C.shall advise the ship to use VHF D.will be put into use immediately正确答案A
(1.5 分)
If the ship's radar is in trouble, the shore-based radar
A.may provide the ship of her position B.should be installed with surveillance systems C.shall advise the ship to use VHF D.will be put into use immediately正确答案A
