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【简答题】
（8分）ABCDE5种食物（各100克）的部分成分如下表所示，请据表回答问题：（“…”表示未检出） 食物 糖类 脂肪 蛋白质 维生素C 铁 A 5.0 3.5 19.3 20 22.6 B 0 99.9 … … 2.0 C 3.7 0.3 1.4 62 0.7 D 76.8 0.6 7.7 0 1.1 （1）人体内血红蛋白过少时会引起贫血，你认为这种贫血患者可摄取表中的食物 （填写字母）来缓解贫血症状。 （２）健康人一次大量摄取食物Ｄ后，则血糖含量会明显升高，但由于____ ____（激素）的分泌，血糖浓度又会降到正常水平。 （３）食物中的蛋白质最终在人体消化道的 中被消化成 吸收进入血液，通过血液循环送到组织细胞，此过程可用下图表示，请补充完整。 ① ，② ，③ ，④ 。
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