如图是人体血液循环示意图,图中编号�、�、�、�所指的是心脏各腔,字母a、b、c、d、e、f、g、h、i所指的是血管。请据图回答:(1)血液由 Template




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tomski如图是人体血液循环示意图,图中编号�、�、�、�所指的是心脏各腔,字母a、b、c、d、e、f、g、h、i所指的是血管。请据图回答:(1)血液由 coloring