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为什么别人零下穿短袖,但你不行
组成人体骨骼肌的肌纤维主要分为快速抽动肌纤维、慢速抽动肌纤维两种。前者更多参与如短跑、举重等需要爆发力、高效耗能的行为,后者则主要在马拉松等需要耐力的运动中发挥作用 [7]。
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今日热点
Trump bans trans athletes
To accept parcels from China
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All 67 bodies recovered
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US private payrolls rise
Sworn in as attorney general
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Second strain in dairy cattle
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Synagogue shooting plea
US trade deficit widens
Winter weather warnings
World War II pilot dies
To cut 8.5% of its workforce
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Ohio warehouse shooting
Neil Jacobs to lead NOAA
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