单选题If a crewman suffers a second-degree burn on the arm，you should（）.Adrain any blistersBapply antiseptic ointmentCscrub the arm thoroughly to prevent infectionDimmerse the arm in cold water
单选题
If a crewman suffers a second-degree burn on the arm，you should（）.
A
drain any blisters
B
apply antiseptic ointment
C
scrub the arm thoroughly to prevent infection
D
immerse the arm in cold water
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