如图为人体局部血液流动示意图ab表示动脉c表示毛细血管abc内流动的均为动脉血则c处进行的生理活动是a.气体交换b.物质交换c Template




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tomski如图为人体局部血液流动示意图ab表示动脉c表示毛细血管abc内流动的均为动脉血则c处进行的生理活动是a.气体交换b.物质交换c coloring