单项选择题
Each Class A EPIRB shall be stowed in a manner which will permit（）.
A.easy access to its storage compartment B.replacement of the battery without exposure to the weather C.it to float free if the vessel sinks D.it to remain attached to the vessel
单项选择题 During an annual FCC inspection（）.
单项选择题 Class C EPIRBs are（）.
单项选择题 Class A EPIRBs are required on（）.
