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钢筋的强度包括屈服强度、极限抗拉强度等，HRB400牌号中的400表示钢筋的 强度的标准值为400N/ mm2
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【简答题】Watch the Business of English Episode 3 and fill in the blanks. Sue and Wolter met for the first time at a _________. Sue is from_______. She visited Australia once, but has never been______before. Wh...
【简答题】阅读理解。 Some students often talk about their dream jobs. Betty wants to be a doctor because she thinks it's difficult but fun. Susan thinks (A) a nurse is an angel in white . So she wants to be a nurse...
【简答题】II.完形填空 In our life, we meet quite a lot of people: some just pass by while others can 1.________ our lives. Miss Bella is such a person. She taught me two years only. 2.________, she has taught me a ...
【单选题】有一投资项目，打算购买一机器设备，该设备投资额为70万元，寿命为6年期满有残值5万元，建设期资本化利息2万元，则该机器设备的原值为（ ）万元。
A.
70
B.
72
C.
67
D.
65
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