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dt00108842 dt00108842
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6 years ago
When an Olympic weightlifter uses explosive strength to lift a personal best, the _________ fibers in her legs are probably the most active, but the marathon runner relies on her _________ fibers.
 
  a. slow twitch; fast twitch
  b. fast twitch; slow twitch
  c. Type I; Type III
 d. Type III; Type II
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summer123summer123
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6 years ago
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