在某一时刻测定一器官的动脉和静脉中血液内三种物质的含量其相对数值如图所示该器官是 A.肺 B.� C.肌肉 D.小肠——青夏教育精英家教�—— Template




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tomski在某一时刻测定一器官的动脉和静脉中血液内三种物质的含量其相对数值如图所示该器官是 a.肺 b.� coloring