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如果两个杯子的语义区域连在一起，仅凭语义图能唯一确定原来的分界吗？运行下格，比较 `instance`、`semantic` 和 `boxes`，再改变一个格子。静态读者可直接用这一解释：类别映射是多对一；两个不同实例图可以得到同一语义图。","sha256":"e94ed81106e2b429171f16434f32eb6c393f2620343caf5c55a2fa150a668985","chapter":{"id":"course","title":"下面用一个小型教学网格表示两只杯子与一本书，独立于上方照片的人工轮廓"},"unit":{"id":"notebook-blocks/81854aba012c40cd957e12cbb4bbd008","title":"下面用一个小型教学网格表示两只杯子与一本书，独立于上方照片的人工轮廓"},"page":{"id":"reading-opening","title":"下面用一个小型教学网格表示两只杯子与一本书，独立于上方照片的人工轮廓","number":1},"sectionTitle":"下面用一个小型教学网格表示两只杯子与一本书，独立于上方照片的人工轮廓","currentQuestion":"下面用一个小型教学网格表示两只杯子与一本书，独立于上方照片的人工轮廓","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-3782ff47a82f9dc05ea0fa3d","nextBlock":null,"prerequisites":[{"id":"b-5f9052b130cf5d4fe1a4bcdf","url":"#b-5f9052b130cf5d4fe1a4bcdf","role":"section-title"},{"id":"b-1332b426ec4b39b52898de80","url":"#b-1332b426ec4b39b52898de80","role":"problem-context"}],"relatedBlocks":[]}]}