单项选择题
A.1U=1nKatal B.1U=16.67nKatal C.1nKatal=16.67U D.1Katal=60×109U E.1U=16.67μKatal
A.U/L B.Katal C.g/h D.ml/L E.pmol
A.AMY B.ACP C.LPL D.ChE E.ALP