试题详情
- [材料题]
- 单项选择题1.大黄素的结构
A、R
=CH
,R
=H
B、R
=CH
OH,R
=H
C、R
=COOH,R
=H
D、R
=CH
,R
=OH
E、R
=CH
,R
=OCH
- D
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- 单项选择题2.大黄酸的结构
A、R
=CH
,R
=H
B、R
=CH
OH,R
=H
C、R
=COOH,R
=H
D、R
=CH
,R
=OH
E、R
=CH
,R
=OCH
- C
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