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【单选题】
男,45岁,因上吐下泻住某医院,每天静脉途径给庆大霉素24万单位共9天,近5天来无尿,眼结膜水肿,腹水,下肢水肿。实验室检查:BUN42mmol/L,血清肌酐1.04mmol/L,血清钾6.8mmol/L。 应诊断为:A.
庆大霉素过敏反应
B.
庆大霉素肾中毒，导致急性肾衰
C.
前列腺肥大
D.
原发病导致失水
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皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: You look upset. Anything wrong? M: I failed in physics exam again in spite of all the efforts I made. Q: What do we know about the man from the conversation? (17)
A.
he didn't work as hard as he was supposed to.
B.
He didn't pass the physics exam.
C.
He did better in an earlier exam.
D.
he found something wrong with the exam.
【单选题】—You look upset. What’s the matter? —I had my proposal again.
A.
turning down
B.
turned down
C.
to turn down
D.
turned to
【单选题】听力原文：W：You look upset．Anything wrong? M：I failed in the physics exam again in spite of all the efforts I made． Q：What do we know about the man from the conversation? (15)
A.
He didn't work as hard as he was supposed to.
B.
He didn't pass the physics exam.
C.
He did better in an earlier exam.
D.
He found something wrong with the exam.
【简答题】设等比数列 的前 项和为 ,已知 则 的值为 ．
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