题型:问答题 Many of the big world sports events are _______by wealthy big companies, who hope to advertise their companies or their products. [ ]A. organized B. arranged C. hosted D. sponsored 查看答案
题型:问答题 患者,男,66岁,缺失,患者对塑料严重过敏。余牙及缺牙间隙正常若设计成金属支架修复时,采用下述哪种方法复制工作模型最佳()A.琼脂印模材复制工作模型B.打样膏管制工作模型C.藻酸盐水粉剂复制工作模型D.复制模型用硅橡胶印模材E.石膏印模材复制工作模型 查看答案