1．小方在吃�萄时将一粒�萄种子咽了下去下列是这粒种子的“旅行路线 的是 A．口腔→食管→胃→大肠→小肠→肛门b．口腔→胃→食管→小肠 Sketch Coloring Page

1．小方在吃�萄时将一粒�萄种子咽了下去下列是这粒种子的“旅行路线 的是 A．口腔→食管→胃→大肠→小肠→肛门b．口腔→胃→食管→小肠 Template

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tomski1．小方在吃�萄时将一粒�萄种子咽了下去下列是这粒种子的“旅行路线 的是 a．口腔→食管→胃→大肠→小肠→肛门b．口腔→胃→食管→小肠 coloring

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结合下图回答问题姗姗吃苹果时不小心将苹果的种子咽了下去这粒种子在姗姗的消化道内经历了一天的历险它先遇到像轧钢机似的上下尖硬的怪物 sketch template

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