When there is a fire in a large electric motor, normally the very FIRST step is to （）
- Asecure the electric supply
- Bventilate area to remove smoke
- Cstart the fire pump and lead out hose
- Dapply foam
问题
When there is a fire in a large electr
参考解析：
分类：船舶电气与船舶安全题库
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