如图是生物兴趣小组的同学用两片长方形的木板和一颗螺丝5制作的肌肉牵拉骨运动的模型请据图回答1图中3和4相当于骨骼肌图中虚线箭头 Template




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tomski如图是生物兴趣小组的同学用两片长方形的木板和一颗螺丝5制作的肌肉牵拉骨运动的模型请据图回答1图中3和4相当于骨骼肌图中虚线箭头 coloring