Which of the follow ing statement about imperforate anus is not true（    ）

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• 1For colon cancer， the spreading distance along the colon wall to the margin of cancer is about ：（    ）

  A.lcm

  B.2〜3cm

  C.4〜5cm

  D.5〜6cm

  E.大于6cm

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• 2Which one is not suitable to diagnose colon cancer ：（    ）

  A.proctoscopy

  B.CEA in serum

  C.CT

  D.gastroscopy

  E.occult blood in stool

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• 3Location of anal fissure mostly been found in which clock by knee-chest position ：（    ）

  A.twelve

  B.three

  C.nine

  D.six

  E.three and six

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• 4Which of the following is the most accurate description of “triad syndrome of analfissure ” ？（    ）

  A.Internal hemorrhoids，external hemorrhoids，anal fissure

  B.Analfissure，internal hemorrhoids，sentinelpile

  C.Internal hemorrhoids，external hemorrhoids，sentinel pile

  D.Anal fissure，sentinel pile，anal papilla hypertrophy

  E.External hemorrhoids， sentinel pile，anal fissure

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• 5Which of the following molecular markers is most important fo r the diagnosis and postoperative observation of colon cancer?（    ）

  A.AFP

  B.CEA

  C.CA19-9

  D.CA125

  E.AKP

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• 6During an operation fo r carcinoma of the hepatic flexure of the colon， an unex­-pected discontinuous 3-cm metastasis is discovered in the edge of the rig h t lobe of the liver.The surgeon should（    ）

  A.Tem inate the operation， screen the patient fo r evidence of other metastases，and plan further therapy after the reevaluation

  B.Perform a right hemicolectomy and a right hepatic lobectomy

  C.Perform a right hemicolectomy and a wedge resection of the metastasis

  D.Perform a cecostomy and schedule reoperation after a course of systemic chemotherapy

  E.Perform local resection of the primary colon cancer and plan radiation therapy for the lesion on the liver

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• 7实习医生遇到一女性病人，26岁，脓血便伴消瘦5年。为明确诊断，应选择的检查是（    ）

  A.大便OB实验

  B.腹部透视

  C.钡剂灌肠

  D.大便查阿米巴滋养体

  E.血液肿瘤标志物

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• 8乙状结肠镜检查时发现肠黏膜遍布无蒂息肉，但未发现骨骼及其他软组织肿瘤，该实习生的诊断为（    ）

  A.Peutz-Jeghers综合征

  B.Gardner综合征

  C.家族性息肉病

  D.溃疡性结肠炎

  E.阿米巴性肠炎

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• 9纤维结肠镜见直肠息肉稀少，其余结肠状况与乙状结肠相同。治疗方案为（    ）

  A.抗生素治疗观察

  B.行结肠切除+结肠造口术

  C.行结肠切除+回肠直肠吻合术

  D.行结肠切除+部分回肠切除术

  E.行直肠切除+结肠造口术

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• 10选择该手术理由是（    ）

  A.防止息肉向小肠蔓延

  B.预防肠梗阻

  C.预防大出血

  D.预防癌变

  E.预防遗传给下一代

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