问题
单项选择题 A1/A2型题
胃大部切除术后发生残胃排空障碍，最常见的原因是（）。
A.吻合口水肿
B.吻合口开口过小
C.胃肠壁翻入过多
D.空肠逆行套叠堵塞吻合口
E.功能性梗阻
答案
参考答案：E
解析：残胃排空障碍最常见的原因不是机械梗阻因素，而是术后残胃弛张无力、吻合口局部肠麻痹和运动功能紊乱综合因素造成，属功能性排空障碍。
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胃大部切除术后发生残胃排空障碍，最常见的原因是（）。
A.吻合口水肿
B.吻合口开口过小
C.胃肠壁翻入过多
D.空肠逆行套叠堵塞吻合口
E.功能性梗阻
参考答案：E
解析：残胃排空障碍最常见的原因不是机械梗阻因素，而是术后残胃弛张无力、吻合口局部肠麻痹和运动功能紊乱综合因素造成，属功能性排空障碍。
“Where is the university?” This is a question that many visitors to Cambridge ask. But no one can give them a 1 answer, for there is no wall to be found 2the university. The university is the city. You can find classroom buildings, 3 ， museums and offices of the university all over the city. And most of its members are the students and4 of the thirty-one colleges. Cambridge was already a 5 town long before the first students and teachers arrived 800 years ago. It grew up by the river Granta, and the river was once 6 the Cam. A 7 was built over the river as early as 875. So the town got its name “Cambridge”. In the fourteenth and fifteenth centuries more and more land was used for college buildings. The town grew much 8 in the nineteenth century after the opening of the railway in 1845. Cambridge became a 9 in 1951 and now it has a population of over 100,000. Many young students in other countries 10 to study at Cambridge. Thousands of people from all over the world come to visit the university town. It has become a famous place all around the world.
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