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第三方物流企业组织销售物流，主要优点是（）。
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佝偻病手足搐搦症主要是由于（）
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关于脉压正确的是（）
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焊接和铸造过程中的气体来源于何处？它们是如何产生的？
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恢复通风前，必须检查瓦斯。只有在局部通风机及其开关附近10米以内风流中的瓦斯浓度都不超过（）时，方可人工开启局部通风机。
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在80C51汇编语言中，十六进制数据正确的书写格式是（）。
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that, impressed, against, at, who, with, place, catalogue, displayed, for Dear Sir or Madam, We were(1)by the selection of sweaters that were(2)on your stand(3)the Menswear Exhibition(4)was held in Chicago last month. We are a large chain of retailers and looking for a manufacturer(5)could supply us(6)a wide range of sweaters(7)the teenage market. As we usually(8)very large orders, we would expect a quantity discount in addition to a 20% trade discount off net list prices, and our terms of payment are normally 30 days bill of exchange, documents(9)payment. If these conditions interest you, and you can meet orders of over 1000 garments at one time, please send us your current(10)and price-list. We hope to hear from you soon. Yours faithfully,
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蔡元培在《美育实施的方法》中论述的美育的范围是（ ）
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对于中长股线宜采用（）结头型式。
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对违法犯罪的未成年人，实行教育、感化、挽救的方针，坚持教育为主、惩罚为辅的原则。对违法犯罪的未成年人，应当依法（ ）处罚。