单项选择题

A.血肌肝48h内升高>0.3mg/dl (>26.5mol/L)
B.7d内血肌酐较基础值升高4%
C.尿量值持续24h少于0.5ml/(kg*h)
D.血肌酐24h内升高>0.3mg/dl (>26.5mol/L)