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【单选题】
肠梗阻患者因反复呕吐入院，血气分析结果为：pH 7.49，PACO2 6.4 kPA(48 mmHg)，HC03-36 mmol／L，应该诊断为
A.
代谢性酸中毒
B.
代谢性碱中毒
C.
呼吸性酸中毒
D.
呼吸性碱中毒
E.
混合性酸碱中毒
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A.
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B.
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C.
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D.
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【单选题】Anna is _____ to work out the math problems and gets a good grade.
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【单选题】听力原文：W: Richard works as hard as his roommate. M: That's not saying very much. W: Do you mean that he does not have a good performance at school? M: I don't really mean that. What conclusion can be dr...
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【简答题】Jane was a few minutes late. Smith had 1 the office when she got there. His secretary( 秘书 )told her he would be back in a few minutes. She had to sit down and 2 outside the office. “ I ’ ll 3 get this...
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