心脏实际是一个收集和排出血液的“泵 .如图示心脏的结构请分析回答1将血液“泵出 的结构是 和 分别将血液“泵入 Template




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tomski心脏实际是一个收集和排出血液的“泵 .如图示心脏的结构请分析回答1将血液“泵出 的结构是 coloring