Objective To explore the value of meal examination in cartilaginous tracheobronchial ectopia of the esophageal wall.目的探讨食管壁内气管软骨异位症钡餐检查的价值.Objective To discuss the oncogenesis, clinical manifestation and relative treatme...
根和根冠被一鞘 状 结构,即胚根鞘所覆盖.Both root and root cap are covered by a sheath - like structure called the coleorhiza.胚根鞘:保护幼根的鞘状结构.Coleorhiza ( pl . coleorhizae ) The protective sheath surrounding the radicle in grasses....
Brazil harvested 28m bags of coffee in 1991, the biggest crop for four years.1991年，巴西的咖啡豆产量达2,800万袋，为4年来最高。In his new career as a restaurateur he has blossomed and harvested many awards.转行经营餐饮之后，他在事业上大获成功并获得了许多奖项。Great a...