可与Girard T反应生成水溶性缩合物的是( )
A．酚性成分B．酸性成分C．醛或酮类成分D．酮类成分E．碱性成分
参考答案：D
—Would you mind my little sister while I am away?
—Of course not. [ ]
A. looking for
B. looking at
C. looking after
D. looking forward to
磺胺类药物的基本结构是()
A．A
B．B
C．C
D．D
E．E
