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【单选题】
关于维生素D缺乏性手足搐搦症的描述,下列不正确的是
A.
神经肌肉兴奋性降低
B.
血清总钙<1.75-1.88mmol /L
C.
维生素D缺乏
D.
甲状腺代偿功能不足
E.
手足搐搦是本病特有的表现
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A.
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B.
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C.
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