A、in wet places
B、close to the heat
C、away from chemicals
D、in dry places
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A、should be gradually increased B、should be gradually reduced C、should be constantly kept D、should be varied up and down
A、should be kept at a proper level by a cooler B、should be raised to about 80℃ by a heater C、should be raised gradually D、should be lowered to about 60℃
A、All engines，motors，fans，etc. should be shut down when fueling B、All windows，doors，hatches，etc. should be closed C、A fire extinguisher should be kept nearby D、Fuel tanks should be topped off with no room for expansion
A、kept in nonmetal containers B、discarded as soon as possible C、cleaned thoroughly for reuse D、kept in the paint locker
A、Wet cargo must be kept away from dry cargo. B、Heavy cargo must be kept away from dry cargo. C、Light cargo must be kept away from dry cargo. D、Wet cargo must be kept away from light cargo.
A、a sponge used to mop up and store condensation must be kept salt free B、only condensation on the bottom of the canopy should be collected C、it should be strained through a finely woven cloth D、chlorine tablets should be used to make it drinkable
A、kept in a locker B、secured at each end of the boat with a lanyard C、kept next to the boat coxswain D、kept in the emergency locker on the ship and brought to the lifeboat when needed
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