After an explosion，repair of emergency machinery and services should be accomplished（）.<br>A:after control of fire，flooding，and structural repairs<br>B:immediately，before the emergency is under control<br>C:after control of fire，but before control of flooding<br>D:after stability is restored

After an explosion，repair of emergency machinery and services should be accomplished（）.
A:after control of fire，flooding，and structural repairs
B:immediately，before the emergency is under control
C:after control of fire，but before control of flooding
D:after stability is restored

出自：海船船员证

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