单项选择题
ECDIS must be able to perform all of the following EXCEPT（）.
A.determine true bearing and distance between two geographical points B.determine magnetic compass deviation C.transform a local datum to the WGS-'84 datum D.convert "graphical coordinates" to "display coordinates"
单项选择题 The mean draft of a ship is the draft（）.
单项选择题 The ISM code is part of（）.
单项选择题 （）is on the panel of radar.
