A、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">7.4`-</span><span style="font-size: 10.5pt; font-family: 宋体;">二羟基黄酮</span></p>
B、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">4`-</span><span style="font-size: 10.5pt; font-family: 宋体;">羟基黄酮</span></p>
C、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">3-</span><span style="font-size: 10.5pt; font-family: 宋体;">羟基黄酮</span></p>
D、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">6-</span><span style="font-size: 10.5pt; font-family: 宋体;">羟基黄酮</span></p>
E、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">5-</span><span style="font-size: 10.5pt; font-family: 宋体;">羟基黄酮</span></p>
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