临术情景：患者，男性，58岁，乙状结肠癌术后出现尿潴留。要求：请用普通导尿管为患者（医学模拟人）留置导尿。考试时间：11分钟
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spends a few hours in lab every Wednesday. He ______
简要病史男性，15岁。主诉：左膝关节肿痛7天，黑粪3天。
canoe to America during the 16th and the 17th century ______
go back. Of course, he arrived very late at the office. ______
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