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男性，59岁，进行性吞咽困难2个月入院，钡剂造影提示食管中段直径5cm狭窄伴黏膜破坏，诊断为食管中段癌。行食管癌根治，食管胃胸膜顶吻合术。术后第6天进流食后突然出现胸闷、憋气、心悸、体温升高，白细胞升高，胸片示左胸大量胸腔积液，此时应首先怀疑出现A、肺不张、肺炎 B、急性胃扩张 C、吻合口瘘 D、充血性心衰 E、食管裂孔疝 如胸穿抽出脓性分泌物，最方便的进一步确诊方法为A、左胸腔引流后，口服美蓝，观察胸水颜色 B、紧急钡剂造影 C、B超 D、胃镜 E、螺旋CT 如已证实吻合口瘘的假设，则应采取的正确措施不包括下列哪一项A、禁食水 B、全静脉营养 C、空肠造瘘 D、局部放射治疗 E、胸腔引流和冲洗
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【单选题】The population of the city ________from less than half a million in 1949 to over two million.
A.
have increased
B.
has increased
C.
have improved
D.
has improved
【单选题】How many people become infected with malaria each year?
A.
Over 3 million.
B.
Over 7 million.
C.
Over 30 million.
D.
Over 70 million.
【简答题】A．Over 210 million. B．Less than 200 million. C．Around 40 million. D．About 140 million.
【简答题】Over a million people were warned not
【简答题】over a million couples had their marriages 2 ,
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