[单选题]

醋酸地塞米松的红外光吸收图谱中,归属3位酮羰基的伸缩振动(C=0)的峰位是

A.3500cm-l

B.1660cm-1

C.1130cm-1

D.1055 cm一1

E.885cm-l

参考答案与解析: