10岁男孩，右下腹持续性痛阵发性加剧4天，发热，呕吐5次，为胃内容物，2天未排大便，仍排气。查体：体温38.8℃，脉搏100次／分，腹稍胀，未见肠型，右下腹扪及5cm×4cm肿块，边界不清有压痛、肌紧张和反跳痛，肠鸣音减少，直肠指诊阴性。白细胞18×109/L，中性粒细胞0.8。应诊断为（）
A.肠结核
B.肠套叠
C.蛔虫团肠梗阻
D.阑尾周围脓肿
E.盲肠癌
参考答案：D
| 答语选择，根据A栏的问题选择B栏的答语，将其标号填入题前的括号内。 | |
| A栏 ( )1. What's the matter with you? ( )2. What can I do for you? ( )3. Can you tell me the telephone number? ( )4. Hello! Could I speak to Tom, please? ( )5. What should I do, doctor? | B栏 A. Hand me the brush, please. B. Sure. It's 88125350. C. I've got a headache. D. You'd better have a rest. E. Speaking. |