Which statement pertaining to log keeping
题型：单项选择题
问题：
Which statement pertaining to log keeping is TRUE（）.
A.Entries relating to pre-voyage，pre-departure and daily tests are required
B.Both A and C
C.All distress，urgent and safety communications must be logged
D.Routine daily MF-HF and INMARSAT-C transmissions do not have to be logged