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Home Q & A Board Biology-Related Homework Help Medicine Pharmacology (Moderator: DelightfulMind)
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salsathief salsathief
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6 years ago
The primary cause of COPD is ____.
 A) cigarette smoking
  B) pollution
  C) genetic defects
  D) allergens
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saundrasmith243saundrasmith243
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6 years ago
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salsathief Author
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6 years ago
Thank you, thank you, thank you!
Tim0301
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Yesterday
Just got PERFECT on my quiz
halyna
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2 hours ago
Smart ... Thanks!
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