切取一段紫背天�的茎插入湿润的沙土中一般在4 10天后即可生出新根这种繁殖方法叫a．扦插b．压条c．嫁接d．组织培养——青夏教育精英家教�—— Sketch Coloring Page

切取一段紫背天�的茎插入湿润的沙土中一般在4 10天后即可生出新根这种繁殖方法叫a．扦插b．压条c．嫁接d．组织培养——青夏教育精英家教�—— Template

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