单项选择题
A.the call sign and name B.the official number and name C.the port of registry and name D.the port of registry and official number
A.breaking the weak link B.releasing the tie-down strap C.pulling the operating cord D.releasing the CO2 canister
A.cutting the straps that enclose the container B.removing the rubber sealing strip from the container C.loosening the turnbuckle on the securing strap D.pushing the button on the hydrostatic release