应力集中是指由于截面突变,而在其附近小范围内应力局部增大,离开该区域稍远的地方,应力

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应力集中是指由于截面突变,而在其附近小范围内应力局部增大,离开该区域稍远的地方,应力迅速减小,并趋于均匀的现象。()

考点:病案信息技术(医学高级)病案信息技术(医学高级)题库
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如图所示,在与水平面成60°角的光滑金属导轨间连一电源,在相距为1m的平行导轨上放一质量为0.3㎏的金属棒ab(ab棒垂直导轨),磁场方向竖直向上,当棒中电流为3A时棒恰好静止。求磁感应强度B和棒对导轨的压力大小。(g=10m/s2

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Sven, Trudi, Uri and Viktor are four business colleagues who have been running a successful business in Scandinavia for several years. Their company operates a chain of retail outlets that sell premium teas and coffees, with high quality, healthy lunches and dinners. They now wish to introduce their business model to large cities in Russia.All four colleagues have agreed that they do not wish to expose their personal assets to risk but are prepared to make substantial personal investments to capitalise the new business. They are unsure of the best business form to adopt. Sven and Trudi favour the flexibility offered by the partnership form but acknowledge that the business has the potential to grow very rapidly which may create a need for external capital. Uri and Viktor are highly ambitious and see their business as eventually becoming a major recognised brand throughout Europe, enabling them to accumulate wealth for themselves and their children.All of them agree that it will be inevitable that new investors will be needed eventually. They wish to control the business but do not have concerns about bringing in outside participants should this become necessary.Required:Explain the alternative business forms that should be considered for the new enterprise, identifying their legal characteristics and the relevance of these to the investors. (10 marks)

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淋巴细胞约为白细胞1/4为人体()细胞。

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简述APN型压滤机主要构造。

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网络管理的5大功能域是______。

A.配置管理、故障管理、计费管理、性能管理和安全管理
B.配置管理、故障管理、计费管理、带宽管理和安全管理
C.配置管理、故障管理、成本管理、性能管理和安全管理
D.配置管理、用户管理、计费管理、性能管理和安全管理

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