第7题: [单项选择]下列哪种情况下肾小球滤过率不减少 A. 动脉血压降到80mHg以下 B. 肾小球滤过面积减小 C. 肾小囊内压升高 D. 血浆蛋白浓度明显下降 参考答案:D 答案解析:[考点] 肾小球的滤过机能
[分析] 影响肾小球滤过的因素,包括滤过膜的通透性和滤过膜的面积,以及有效滤过压[=(肾小球毛细血管咖压|囊内液胶体渗透压)-(血浆胶体渗透压尸片小囊内压)]的大小。滤过
第34题: [填空题]The article cites the example that some member countries promise to respect human fights, but many member countries show little or no respect for human rights in order to show that the U. N. is too weak to do anything about it. 参考答案:Y 答案解析:推断题。答题依据第十八段。该段的第二句话是主题句"They say that the U.N. is too weak.”接着就是“As an example,...”本题正是选自该举例。这个具体的例