支气管扩张好发的部位为() A.左下叶 B.右中叶 C.右下叶 D.左上叶 E.右上

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问题:

支气管扩张好发的部位为()

A.左下叶

B.右中叶

C.右下叶

D.左上叶

E.右上叶

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如图所示,将一把金属叉子拴在一根约lm长的线的中间把线的两端分别缠绕在双手的食指上,缠绕多圈,插入耳朵.然后让叉子撞到坚硬的物体上,等它垂下把线拉直时,你就可以听到敲钟似的响声。通过撞击,金属叉子________发声,声音主要通过________传递到人耳。

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根据一定的教学目的和对教学过程规律的认识而制定的指导教学工作的基本准则被称为____________。

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 Political and demographic changes within Europe, as well as the United States, also ensure that the transatlantic alliance will lose prominence. In Europe, the E.U. project still consumes the attention of many, but for others, especially those in southern Europe facing unsustainable fiscal shortfalls, domestic economic turmoil takes precedence. No doubt, Europe’s security challenges are geographically, politically and psychologically less immediate to the population than its economic ones. Mounting financial problems and the imperative to cut deficits are sure to limit what Europeans can do militarily beyond their continent. It is true that the era in which Europe and transatlantic relations dominated U.S. foreign policy is over.

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一个学者要想在一个学科中拥有一席之地,途径有哪些?

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物流服务的生产和消费过程中不涉及任何东西的所有权转移。( )

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