[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: