第7题: [单项选择]Questions 19 to 22 are based on the conversation you have just heard. A. He has a headache. B. He failed his history exam. C. He is tired. D. He is too busy. 参考答案:C 答案解析:[听力原文] What is the man’s problem
第11题: [单项选择]注射丙种球蛋白属于()。 A. 自动自然免疫 B. 自动人工免疫 C. 被动自然免疫 D. 被动人工免疫 E. 自然免疫 参考答案:D 答案解析:注射丙种球蛋白、抗毒素、细胞因子等以治疗或紧急预防感染的措施属于被动人工免疫,而注射灭活疫苗、类毒素等使之产生特异性免疫为自动人工免疫。