The survival of civilization, as we know, is()threat.
A、with in
B、under
C、to wards
D、upon
A、with in
B、under
C、to wards
D、upon
A、keep the propeller from being fouled B、increase propeller speed C、help calm the waves in the vicinity of the craft D、increase the holding power of the sea anchor
A、The sea condition at the time of the drill B、Which survival craft was used C、The names of all crew members participating in the drill D、The name of the lifeboatman in charge of each boat
A、The sea condition at the time of the drill B、Which survival craft was used C、The names of all crew members participating in the drill D、The name of the lifeboatman in charge of each boat
A、there is burning oil on the water B、there is a rescue craft in the area C、water temperature is below 40°F D、a rigid survival craft is in the area
A、A.there is burning oil on the water B、B.there is a rescue craft in the area C、C.water temperature is below 40°F D、D.a rigid survival craft is in the area
A、permanently mounted in the survival craft B、portable and stowed for carriage to the survival craft C、permanently mounted on the bridge wings D、portable and stowed in the emergency gear locker