单选题 1分

Sufficient,but not less than two complete sets of safety equipment in addition to the firemen's outf...

Sufficient,but not less than two complete sets of safety equipment in addition to the firemen's outfits,each permitting personnel to enter and work in a______space, should be provided.
  • A.gas-filled
  • B.water-filled
  • C.gasfire
  • D.open

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