女性，32岁，反复腰痛、尿频、尿痛3天。尿常规：WBC30～40/HP，RBC20～30/HP。中段尿培养有细菌生长。肾脏B超：双侧肾可见与肾锥体分布一致的强回声团，呈放射状排列，见多个小结石。1年前IVP示：双侧肾脏见多数囊肿和扩张的小管，肾锥体被造影剂充盈，出现不规则阴影，呈花束状。考虑诊断是（）
A.多囊肾、肾结石、尿路感染
B.髓质海绵肾、肾结石、尿路感染
C.多囊肾、肾结石、肾盂肾炎
D.肾积水、肾结石、逆行性尿路感染
E.髓质囊性病、肾结石、合并泌尿系感染
参考答案：B
解析：髓质海绵肾的肾髓质集合管呈囊状扩张，X线腹部平片可见成簇的多发结石，肾小管浓缩和酸化功能受损。
阅读短文，根据短文内容，从短文后的五个选项中，选出能填入空白处的最佳选项。选项中有一项为多余选项。 David Beckham was born on 2nd May, 1975, in London. When he was a young boy, he played football whenever he had the chance. Sometimes he would go and watch a game with his friends. 小题1: . This led to him going for a visit to a football training camp in Spain. As a boy at secondary school he played for not only his school but also his country team. On 8th July, 1991, he became a member of Manchester United. 小题2: . On 2nd April, 1995, he played his first major football league game against Leeds United. During 1995 and 1996, David became a regular member of the team and Manchester United won in both seasons, with David scoring many goals. 小题3: . In the first game of the 1996/7 season, he scored an amazing goal from beyond the halfway line. Seeing the goalkeeper a little way out of his goal, David sent the ball over the goalkeeper’s head and into the goal. He continued to score astonishing goals, especially from free-kicks. David Beckham is a great player, but he is different from most other players . He has a real love for football. 小题4: . He is always on the move with the ball or running to pick up a pass from another team member. He also has his feet on the ground and behaves in a very natural and relaxed way.
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