单项选择题
A.a record of all routine calls
B.a record of your transmissions only
C.the home address of the vessel's Master or owner
D.a summary of all distress calls and messages
单项选择题 A vessel，which does not normally engage in towing operations，is towing a vessel in distress. She（）.
单项选择题 A vessel sounding a fog signal of one short，one prolonged，and one short blast is indicating that the vessel is（）.
单项选择题 A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.