下列哪项符合慢性化脓性中耳炎的治疗原则（）。
A.去除病因
B.清除中耳腔积液
C.控制感染
D.通畅引流
E.恢复听功能
参考答案：A, C, D, E
病历摘要：患者男性，67岁，间歇性无痛性全程肉眼血尿20天。无尿频、尿急和尿痛。无排尿费力。夜尿3次。
最可能的诊断是？提示：B超示左肾轻度积液，左输尿管上段扩张，右肾、右输尿管和膀胱未见异常。IVU示双肾功能良好；左肾轻度积液，左输尿管上段扩张，扩张下方见一充盈缺损；右肾、右输尿管和膀胱形态未见异常。（）
A.膀胱癌
B.左肾盂癌
C.左输尿管癌
D.左肾癌
E.膀胱结石
F.左肾结石
补全对话：根据句意及首字母提示，完成下列对话。(S = Son, D = Dad)
S: Hey, Dad?
D: Y 1 ?
S: Could I go to the m 2 with my classmates tonight?
D: S 3 . But don't s 4 out late.
S: Could I stay out u 5 eleven?
D: No, you c 6 . You h 7 a test tomorrow, remember?
S: Oh, yeah, well, could I u 8 your car?
D: Sorry, but I need it. I h 9 to have a meeting.
S: Could you give me a r 10 downtown? D: Sure
