单项选择题

A.孕妇尿中E/C比值>15
B.羊水中肌酐值≥3mg/dl
C.羊水中肌酐值≥176.8μmol/L
D.羊水中HPL值>4mg/L
E.羊水中肌酐值≥180.8μmol/L