【单选题】【消耗次数:1】
下列关于南沙参的性状特征正确的是
断面黄白色或类白色,有多数不规则裂隙
细长圆柱形,断面皮部黄白色,木部黄色
表面淡灰绿色或淡棕黄色,有纵皱纹
断面灰白色,皮部散有棕色油点,形成层成环
表面灰褐色或棕褐色,有数个空洞的茎基痕
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