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life_skals life_skals
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6 years ago
As pollutants destroy the hairlike cilia that remove irritants from the lungs, individuals may suffer chronic ____________________, characterized by excessive mucus flow and continuous coughing.
 Fill in the blank(s) with correct word
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lyssmarlyssmar
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6 years ago
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life_skals Author
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6 years ago
this is exactly what I needed
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Yesterday
Good timing, thanks!
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2 hours ago
You make an excellent tutor!
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