第4题: [单项选择]丁卡因() A. 为酰胺类局麻药 B. 不宜用于表面麻醉 C. 毒性大 D. 局麻作用弱 E. 为中效局麻药 参考答案:C
第5题: [单项选择]一项研究旨在测量服用某药所致轻微症状的频率。() A. 未接受任何医药的对照个体对于解释该资料是必要的 B. 接受安慰剂的对照个体对于解释该资料是必要的 C. 设立对照组易于使调查者误人歧途 D. 设立对照组的可取性取决于预期反应的种类 E. 设立对照组的可取性取决于参试对象的年龄 参考答案:B
第30题:[单选题]What did the carpenter mean by”... I have so many more bridges to build”?________( ) A.He had to build more wooden bridges for others. B.He had other jobs to do. C. He wanted to mend more rifts between friends. D. He was too embarrassed to be there. 参考答案:C