单项选择题
All portable fire extinguishers must be capable of being（）.
A.carried by hand to a fire B.carried or rolled to a fire C.recharged in the field D.used on class "B" fires
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（）.
单项选择题 All of the following vessels are “restricted in their ability to maneuver” EXCEPT a vessel （）.
