人体内的血液在循环系统中只能按一定方�流动不能倒流在心脏中血液的流动方�只能是 A左心室→左心房→主动脉 B右心室→右心房→肺动脉 Template




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Try and sketch some of theseHerd, Lasagna, Chest, Ice cream sandwich, Tinfoil hat, Cow, Make-up, Birdhouse, Sunhat, Princess, view more ideas


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tomski人体内的血液在循环系统中只能按一定方�流动不能倒流在心脏中血液的流动方�只能是 a左心室→左心房→主动脉 b右心室→右心房→肺动脉 coloring