第26题: [单项选择]溃疡型肠结核X线征象中下列哪项不确切() A. 可见点状或小刺状溃疡 B. 病变肠管痉挛收缩,黏膜皱襞紊乱 C. 钡剂通过病变肠管可出现"跳跃"征 D. 有时可见充盈缺损及黏膜皱襞破坏 E. 可以黏连或瘘管形成 参考答案:D 答案解析:充盈缺损及粘膜皱襞破坏亦见于胃肠道恶性肿瘤。
A. invented modern mathematical applications B. were unaware of the value of their studies C. worked with electricity D. were forced to resign themselves to failure 参考答案:B