下列对草本植物茎的叙述哪一项是错误的 A维管束环状排列b没有形成层c导管存在于木质部d韧皮部筛管是活细胞——青夏教育精英家教�—— Template




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tomski下列对草本植物茎的叙述哪一项是错误的 a维管束环状排列b没有形成层c导管存在于木质部d韧皮部筛管是活细胞——青夏教育精英家教�—— coloring