Which of the followings are data layer categories to be displayed on ECDIS?(1.0)
A.ECDIS warnings and messages. B.Hydrographic Office data. C.Notices to Mariners information. D.All of the above.正确答案D
Which of the followings are data layer categories to be displayed on ECDIS?(1.0)
A.ECDIS warnings and messages. B.Hydrographic Office data. C.Notices to Mariners information. D.All of the above.正确答案D