如图为草履虫的结构示意图据图观察下列各项结构与其功能匹配正确的是 A.�是口沟可以吞噬细菌获取食物b.�是细胞壁具有�吸和排泄的 Template




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tomski如图为草履虫的结构示意图据图观察下列各项结构与其功能匹配正确的是 a.�是口沟可以吞噬细菌获取食物b.�是细胞壁具有�吸和排泄的 coloring