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GOOD2Know17 GOOD2Know17
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Posts: 495
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6 years ago
Which source of sound poses the highest risk of injury?
 a. chain saw
 b. alarm clock
 c. subway train
  d. rock concert
  e. video arcade
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lila2016lila2016
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6 years ago
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GOOD2Know17 Author
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6 years ago
Smart ... Thanks!
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Thanks
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2 hours ago
Thanks
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