单选题After using a Halon extinguisher，it should be（）.Aput back in service if more than 50% of the charge remainsBrepaintedCdiscardedDrecharged
单选题
After using a Halon extinguisher，it should be（）.
A
put back in service if more than 50% of the charge remains
B
repainted
C
discarded
D
recharged
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