第12题: [单项选择]急性肾小球肾炎的发病机制是() A. 机体代谢紊乱 B. 感染后的免疫反应 C. 感染所致的中毒反应 D. 细胞直接损害肾脏 E. 病毒损伤肾脏 参考答案:B 答案解析:急性肾小球肾炎是链球菌等感染后抗原一抗体复合物介导的免疫性肾脏疾病。常于急性感染后发病,最常见的致病菌为A族G溶血性链球菌,偶可继发于肺炎球菌、葡萄球菌、伤寒杆菌、淋球菌、克雷伯杆菌及病毒、立克次体、
第22题: [填空题]The major responsibilities of the UN are to maintain world peace, prevent world or local wars and stop aggression, which are specified in the 7th Chapter of the UN Charter. 参考答案:Y 答案解析:第二段第一句“Precisely how these responsibilities were conceptualized was spelled out in Chapter VII of th