第5题: [单项选择]对感染性疾病的早期具有诊断意义的是针对病原微生物产生的（）. A. IgM B. IgA C. sIgA D. IgE E. 1gG 参考答案:A 答案解析:考点：IgM的诊断意义。解析：在病原微生物刺激机体发生免疫反应，IgM是最早产生的抗体。因此对早期感染性疾病具有诊断意义的是针对病原微生物产生的IgM。
第6题: [单项选择]下列哪一项不属于生理性哭闹（） A. 饥饿与不适 B. 疼痛 C. 受惊 D. 夜啼 E. 肠绞痛 参考答案:E
第15题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Martha did not pass the final exam. B. Martha succeeded in passing the final exam. C. Martha was too far away from them. D. It was the case that Martha did not pass the final exam. 参考答案:B 答案解析:[听力原文]
W: It’s said that Martha failed the final exam.
M: That’s far from the truth.
Q: What does
