Multiple Choice
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
Correct Answer:

Verified
Correct Answer:
Verified
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