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neddhelp4exam neddhelp4exam
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6 years ago
What is wavelength?
 
  a. The distance between crests of adjacent waves
  b. The speed of a wave
  c. The distance from the crest of a wave to the trough
  d. The number of waves that pass a given point in a second


(Question #2) Physical dependence develops only when the drug user does what?
 
  a. Takes large doses of a drug.
  b. Takes one drug to the exclusion of all others.
  c. Uses a drug on a regular schedule.
  d. Has used a drug for at least six months.
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pavbapavba
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6 years ago
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neddhelp4exam Author
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#2
6 years ago
Thank you for helping me with this assignment of mine
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