单选题The wooden plug inserted in the vent of a damaged tank should be removed if you are going to （）.Apump from the damaged tankBfight a fireCabandon shipDuse the crossover system
单选题
The wooden plug inserted in the vent of a damaged tank should be removed if you are going to （）.
A
pump from the damaged tank
B
fight a fire
C
abandon ship
D
use the crossover system
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