问题
单项选择题
—腹壁静脉曲张患者,脐以上血流方向由下至 上，脐以下血流由上至下。该患者应考虑为
A．上腔静脉阻塞
B．下腔静脉阻塞
C．门静脉高压或门静脉阻塞
D．髂内静脉阻塞
E．髂外静脉阻塞
答案
参考答案：C
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—腹壁静脉曲张患者,脐以上血流方向由下至 上，脐以下血流由上至下。该患者应考虑为
A．上腔静脉阻塞
B．下腔静脉阻塞
C．门静脉高压或门静脉阻塞
D．髂内静脉阻塞
E．髂外静脉阻塞
参考答案：C
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| London is such a wonderful city. It lies 1 the west of England. The city has 2 parts: the South and the North. In the North there are many important buildings , shops, big parks and interesting places. The weather in London is 3 . In winter it is not very cold and in summer it is not very hot because the city is 4 the sea. People say 5 London is a foggy city and that it often rains. It is true. I am in London now. I meet 6 fogs than before.You can hardly see your hand in front of your face. Cars and buses move along with their lights on. When evening falls , the weather 7 even worse. The fogs are as thick as milk. 8 the buses and cars stop. I 9 an important meeting on the other side of the town, but it is impossible to find a car. I have to get there 10 .
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