题目内容
药材款冬花的性状鉴别特征是
2021-12-23
A.苞片外表面密被灰白色或灰绿色有光泽的长茸毛
B.表面黄白色或绿白色，密被短柔毛
C.苞片内表面密被白色绵毛，撕开可见白色丝状绵毛
D.断面皮部有黄棕色絮状纤维
E.表面黄白色或绿白色，密被红色星状毛
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