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bbless888 bbless888
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6 years ago
____________enclosures are fire protected exit stairwells designed to prevent smoke and the products of combustion created during a fire from entering so that building occupants may exit safely.
 
  a. Smoke-proof
  b. Fire-proof
  c. Gas-proof
  d. Dynamic
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wrote...
6 years ago
a
bbless888 Author
wrote...
6 years ago
So smart
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