A、<p><span style="font-size: 10.5pt; font-family: 宋体;">酚羟基</span></p>
B、<p><span style="font-size: 10.5pt; font-family: 宋体;">酰胺基</span></p>
C、<p><span style="font-size: 10.5pt; font-family: 宋体;">潜在的芳香第一胺</span></p>
D、<p><span style="font-size: 10.5pt; font-family: 宋体;">苯环</span></p>
E、<p><span style="font-size: 10.5pt; font-family: 宋体;">乙酰氨基</span></p>