肾性骨营养不良的原因有()。
A.高磷低钙
B.低磷高钙
C.氮质血症
D.继发性甲状旁腺功能亢进
E.1,25-二羟维生素D3减少
参考答案:A, D, E
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A. in, herewith
B. for, herewith
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