题目：
醛固酮的化学本质是（）
A.类固醇
B.多肽及蛋白质
C.氨基酸衍生物
D.脂肪酸衍生物
E.核苷酸
答案：
参考答案：A
醛固酮的化学本质是（） A.类固醇 B.多肽及蛋白质 C.氨基酸衍生物 D.脂肪酸衍
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