如图是血液循环和气体交换示意图请据图回答1血液由2射出流经56到3的循环途径叫 血液由4射出流经78至1的途径叫 .2由m Template




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tomski如图是血液循环和气体交换示意图请据图回答1血液由2射出流经56到3的循环途径叫 血液由4射出流经78至1的途径叫 .2由m coloring