如图是人的屈肘运动示意图请据图回答1图中的 图表示屈肘动作 图表示伸肘动作.2做屈肘动作时肱二头肌处于 状态肱三头肌处于 状态 Template




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tomski如图是人的屈肘运动示意图请据图回答1图中的 图表示屈肘动作 图表示伸肘动作.2做屈肘动作时肱二头肌处于 coloring