题目内容
维生素D缺乏性佝偻病早期诊断指标是
2021-10-12
A.血浆中cAMP水平增加
B.尿中cMP的排泄量增加
C.血清25-(OH)D3下降
D.毛细血管脆性实验阳性
E.血浆维生素测定
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