问题
单项选择题
肝硬化反复大量放腹水可引起（）
A.感染
B.上消化道出血
C.肝性脑病
D.黄疸
E.肝肾综合征
答案
参考答案：C
解析：腹水中含有大量的钾离子。肝硬化大量放腹水可引起缺钾性碱中毒，促使NH3透过血脑屏障，进入脑细胞产生氨中毒。加之血容量减少及肾功能减退，大量放腹水还可造成大量蛋白质和电解质的丢失，从而诱发肝性脑病。
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肝硬化反复大量放腹水可引起（）
A.感染
B.上消化道出血
C.肝性脑病
D.黄疸
E.肝肾综合征
参考答案：C
解析：腹水中含有大量的钾离子。肝硬化大量放腹水可引起缺钾性碱中毒，促使NH3透过血脑屏障，进入脑细胞产生氨中毒。加之血容量减少及肾功能减退，大量放腹水还可造成大量蛋白质和电解质的丢失，从而诱发肝性脑病。
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Many years ago, only boys could go to school in my hometown. Then schools d ecided to let girls (1)______. But Mr Brown, one of the teachers, was not (2)_____ all pleased. He didn't want to have (3)______ girls in his class. When he began his class, Mr Brown always said: "Good morning, boys" at first. Now when girl students were in his class, he (4)______ said, "Good morning, boys." One day (5)______ only one boy in his class, others were girls. Mr Brown didn't know (6)_______. He just said, "Good morning, boy." (7)_______ day he came into his classroom and looked at all the students. There were no (8)______ in his class. He was very (9)______ and said, "Oh, nobody (10)_______today!" Then he went out of the classroom.
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