单项选择题
All towing vessels of 26 feet or longer while navigating are required to carry which item? （）
A.At least two lifeboats B.A radiotelephone C.A radio direction finder D.None of the above
单项选择题 All portable fire extinguishers must be capable of being（）.
单项选择题 All personnel on board a vessel should be familiar with the rescue boat’s（）.
单项选择题 All OSV personnel should be familiar with survival craft（）.
