“罗盘纹”是形容哪种药材断面特征的()A.怀牛膝 B.大黄 C.何首乌 D.狗脊 E.商陆

作者: tihaiku 人气: - 评论: 0
问题 “罗盘纹”是形容哪种药材断面特征的()
选项 A.怀牛膝 B.大黄 C.何首乌 D.狗脊 E.商陆
答案 E
解析 应注意少数双子叶植物根的异常构造,如何首乌的“云锦状花纹”,牛膝、川牛膝的维管束点状排列成数轮同心环,商陆的“罗盘纹”等。

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