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问题 多项选择题

大咯血窒息表现为（）.

A.大咯血突然停止，呼吸困难

B.大咯血时突然胸闷，气促

C.面色灰白，唇甲发绀

D.烦躁大汗

E.呼吸音减弱或消失

答案

参考答案：A, B, C, D, E

解析：解题思路：大咯血时由于血液或血块阻塞呼吸道造成急性呼吸衰竭的临床征象。

单项选择题

有价证券按（），可以分为政府证券、政府机构证券和公司证券。

A.证券所代表的权利性质分类

B.募集方式分类

C.是否在证券交易所挂牌交易分类

D.证券发行主体分类
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问答题

　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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