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【简答题】
关于肝炎病毒及其所致疾病的叙述,下列哪错误的 A. 甲型肝炎一般不转为慢性 B. 乙型肝炎病毒有致胎儿畸形的危险 C. 丙型肝炎病毒主要通过输血传播 输血制品传播 D. 戊型肝炎病毒经粪-口途径传播,可发生爆发流行 E. Dane颗粒是丙肝病毒感染性颗粒
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B.
four ten years
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through ten years
D.
over ten years
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【单选题】Dr. Yang worked ______ three days ago. [ ]
A.
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B.
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D.
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A.
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B.
goes to the local supermarket by bus
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gets her food from the little shop at the corner
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【简答题】流动比率是流动资产与流动负债的比值,流动比率越高，说明企业短期债务清偿能力越强。流动比率常规值为2，通常又称为又称为2：1比率。 判断对错
【简答题】Has Miss Yang___________ worked in the Beijing Library?
【简答题】A．开髓开放 B．开髓封失活剂 C．开髓拔髓开放 D．麻醉拔髓+根管封药 E．开髓开放+切开引流 以下疾病的首诊处理 急性牙髓炎
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