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个性倾向性是以人的（）为基础的动机系统，它是推动个体行为的动力。
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下列给出的除氧器安全门工作压力的倍数值中，可以作为其动作压力的整定值的是（）。
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简述铣床床身的结构与功用。（以卧式铣床为例）
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（）是包装过程中最重要的一道工序。
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空间稳定作用的特点？
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George: Mr． Zhang． Thank you for your invitation of visiting your company． I hope we can materialize some deals with you soon． Zhang: Mr． George, we are pleased to have the opportunity to meet you here in our company． After you have seen the presentations in our show room, would you tell me which particular items are really of interest to you? George: I had studied your catalogue before I saw your presentations in the show room． We are interested in your silk dresses． I think there will be a prospective market for some of them in AmericA．Here is a list of our requirements, for which I hope to have your lowest offer, CIF New York． Zhang: Thank you for your inquiry． Could you please let us know the quantity you require so that we can make the offers? George: I'll do that． Meanwhile, would you give me an indicative price? Zhang: SurE．Here are our FOB price lists． All prices in the lists are subject to our final confirmation． You will find the prices are reasonable． George: What about the commission? Zhang: Usually, our principle does not allow any commission． George: From European suppliers, in the regular practice, we usually get a 3 to 5 percent commission for imports． You know, we do business on commission basis． Moreover, a commission will help us to promote sales． Zhang: Well, if the order is really large enough, we may take the commission into consideration． I think it will be better to consult this when you order the goods． George: OK． Then I will write down the quantity for each item on the enquiry list． Can you tell me when we can have your offer? Zhang: Tomorrow morning． Could we meet again tomorrow afternoon for further details? George: Fine．
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克罗恩（Crohn）病发生的常见部位是（）
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把握好市场的核心就是要把握好“交易”（“需求”）。
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教师在与家长交往中保持正确的合作态度应该做到（）
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下列结构位于肺门各结构最后面的是（）。