摘要目的观察鸡羽根 角蛋白 管作为组织工程材料的毒性作用.Objective To evaluate the toxicity of chicken calamus keratin ( CCK ) conduit as a tissue - engineered scaffold material.在这一阶段,有一簇羽枝会与中空圆柱融合在一起, 形成翮(即羽根).This stage produced a tuft of barbs f...
It was the almost furtive restlessness and irritability that had possessed him.那是一种一直纠缠着他的隐秘的不安和烦恼.His furtive behaviour aroused our suspicion.他鬼鬼祟祟的行为引起了我们的怀疑.She cast a furtive glance over her shoulder.她心里不安，回头偷偷瞥了一下。T...
她即将举行钢琴独奏会.She is going to give a piano recital.你愿意跟我去听钢琴独奏会 吗 ?Will you come with me to the piano recital?她的老师欣赏她的演奏, 并鼓励她举办独奏会.Her teachers love her playing, and encourage her to recitals....