第2题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. It wasn’t very well designed. B. Its results were just as expected. C. It fully reflected the students’ ability. D. Its results fell short of her expectations. 参考答案:D 答案解析:[听力原文] M: How many students passed the final physics exam in your class W: Forty, but still a
第29题: [单项选择]由病原微生物的细胞壁成分提供接触表面从而启动补体的激活途径是() A. 经典途径 B. 替代途径 C. MBL途径 D. 终末途径 E. 唯一途径 参考答案:B 答案解析:补体激活途径有经典途径、替代途径和MBL途径,其中替代途径是由病原微生物的细胞壁成分提供接触表面从而启动补体的激活。