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【单选题】
铸铁熔点比钢 ( ) 流动性比钢 ( ) 收缩率比钢 ( ) 故铸铁铸造性能( )。A.
高、好、小
B.
低、好、小
C.
高、坏、大
D.
低、坏、大
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【单选题】Read the passage and choose the correct answer.Jimmy has been a postman for the last ten years. He loves to talk to his wife in the evenings about the people he delivers to. He tells her about Mrs. Ma...
A.
for ten years
B.
four ten years
C.
through ten years
D.
over ten years
【简答题】Yang Ruifang worked as a secretary in an Australian company in Melbourne .She became friendly with one of the Australian secretaries, a woman named Cathy Lane .The two usually ate lunch together and Y...
【单选题】Dr. Yang worked ______ three days ago. [ ]
A.
in hospital
B.
at hospital
C.
in a hospital
D.
at a hospital
【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
【单选题】Dr. Yang worked ______ three days ago.
A.
in hospital
B.
in a hospital
C.
at hospital
D.
at a hospital
【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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