题目内容
正常成人血尿素氮水平为
2021-12-30
A.1.8〜6.5mmol/L
B.2.3〜6.5mmol/L
C.3.2〜7.1mmol/L
D.5.0〜7.1mmol/L
E.4.5〜8.Ommol/L
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