断面中间有4～10个类白色点状维管束排列成环，味极苦的中药材是A.川木香B.虎杖C.苦参D.胡黄连E.当归

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问题断面中间有4～10个类白色点状维管束排列成环，味极苦的中药材是

选项

A.川木香
B.虎杖
C.苦参
D.胡黄连
E.当归

答案 D

解析

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