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單項選擇題

當(dāng)血鈣低于多少時,可引起手足搐搦()

A.1.88~2.04mmo/L(7.5~8.1mg/dl)
B.1.41~1.51mmo/L(5.5~6.0mg/dl)
C.1.75~2.04mmo/L(7~8.1mg/dl)
D.1.51~1.64mmo/L(6.0~6.6mg/dl)
E.1.75~1.88mmo/L(7~7.5mg/dl)

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