事实上，在一些代孕纠纷中，代孕母亲与委托父母之间的关系并非始终稳定。邹露璐提到，部分情况下，代孕母亲可能因情感因素或经济纠纷拒绝让出孩子抚养权，或以身份关系为筹码主张费用。一旦进入诉讼程序，法院往往不会认可所谓“代孕协议”的效力，而是依据分娩事实确认母子关系。
Quadtree-based image compression formats and level-of-detail systems all work this way. Satellite imagery, terrain rendering, and geographic information systems use quadtree decomposition to serve data at varying resolutions: zoomed out, you see large coarse blocks; zoomed in, you see fine-grained tiles. The same principle extends to three dimensions (octrees) for volume rendering and 3D spatial indexing.，更多细节参见爱思助手下载最新版本
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From April it will become a contractual requirement to monitor this and achieve it in 90% of cases.