题目内容
（请给出正确答案）
A.患者常有贫血、消瘦、大便习惯改变
B.患者多为老年人，但中青年人发病率在逐渐上升
C.在我国其发病率在消化道癌中仅次于胃癌
D.梗阻常见于盲肠及升结肠癌，而降结肠癌及直肠癌往往不发生梗阻症状
E.有时出现腹部肿块及肠梗阻症状
参考答案
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更多“关于大肠癌的叙述，下列哪项是错误的：()。”相关的问题
A. 术前2～3天进食流质并酌情补液
B. 术前应用肠道制菌剂同时给予维生素K
C. 服用缓泻剂
D. 术晨清洁灌肠
E. 需切除肛管直肠的患者灌肠后行坐浴，女性患者需行阴道冲洗
A. 直肠癌最多见
B. 克罗恩病可发生癌变
C. 大部分起源于腺瘤
D. 排便习惯和大便性状的改变常是本病的最早期表现
E. 扪及腹部包块提示已是中晚期
A. 结肠癌以血运转移为主
B. 结肠癌大多数为鳞状上皮癌
C. 右半结肠癌在临床常出现梗阻症状
D. 结肠癌是胃肠道常见的恶性肿瘤
E. 左半结肠癌在临床上常出现贫血
B.Clinical data provide strong evidence that air-abrasion at a moderate pressure in combination with using phosphate monomer containing primers and/or luting resins provide long-term durable bonding to glass-infiltrated alumina and zirconia ceramic under the humid and stressful oral conditions.
C.As simple and clinically reliable bonding methods to oxide ceramics exist, the rationale for development of alternative bonding methods might be reconsidered especially when these methods are more time consuming or require rather complicated and/or technique sensitive procedures.
D.Conducting a PubMed database search in May 2014 for articles dealing with the resin bond to dental zirconia ceramic reveals an astonishing increase of research being published in the last two decades years.
B.dissertation
C.journal paper
D.research paper
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