[单选题]
正常血钾值的范围为:
A.2.5mg/L~3.5mg/L
B.3.5mg/L~5.5mg/L
C.3.5mg/L~5.5mg/L
D.2.5mg/L~3.5mg/L
E.25mg/L~35mg/L
参考答案与解析: