未知题型

A.蛋白质
B.脂肪
C.淀粉
D.维生素
【参考答案】

C
【知识点】本题考查不同营养物质的消化吸收。【】C。【解析】蛋白质开始消化的部位是胃。在胃中,在胃蛋白酶的作用......

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