(来学网)大血藤区别于鸡血藤的重要性状鉴别特征是
  • A.
    (来学网)有偏心性髓
  • B.
    (来学网)横断面皮部呈红棕色,有数处向内嵌入木部
  • C.
    (来学网)木质部与韧皮部相间排列呈偏心性半圆形的环
  • D.
    (来学网)具多层同心性环纹
  • E.
    (来学网)有菊花心