右图是心脏结构模式图请据图回答1血液由左心室进入主动脉时 处于关闭状态2在连接心脏的血管中血液里含氧�营养丰富的血管 Template




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tomski右图是心脏结构模式图请据图回答1血液由左心室进入主动脉时 处于关闭状态2在连接心脏的血管中血液里含氧�营养丰富的血管 coloring