异丙肾上腺素治疗哮喘时可致心律失常之原因为（） A.兴奋β1-受体 B.兴奋B2-受

Kofi Annan says helping survivors of last week’ s earthquake and (1) . in the Indian Ocean is (2) . The United Nations secretary-general says countnes that have offered aid must (3) and provide it. The offers add up to around (4) dollars. Unitd Nations officials say (5) of that is needed during the next six months.
The concern about offers of international aid is (6) . For example, the earthquake in Bam, Iran, in (7) of 2003 killed more than (8) people. Countries and groups offered hundreds of millions of dollars (9) . The United Nations says it has (10) only about (11) dollars in aid received so far. Governments and organizations that offered help (12) that, however.
On (13) Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14) . The leaders discussed and (15) the idea of (16) owed by affected nations. But the leaders did not say they would do so. Some said that (17) to survivors would be more helpful.
Representatives of (18) countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19) for the Indian Ocean and the (20) .

女患者，35岁，平素性情急躁，月经先后不定，停经50天后， * * 出血，开始量少，一周后量多，有大血块，色紫黑，小腹疼痛，B超检查子宫附件未见异常，舌质紫黯，苔薄白，脉涩。

治疗最佳方剂是 （）

A.保阴煎

B.清热固经汤

C.固本止崩汤

D.四物汤合失笑散

E.左归丸

阅读下面的材料，回答问题。  (5分)

材料一：今年“土豪”一词意外蹿红，“土豪，我们做朋友吧！”等段子在网上引起网民狂欢。这个词汇如今已红到国外。英国广播公司(BBC)近期专门为“Tuhao”一词做了一档节目，探讨“土豪”一词在中国社交网络上的影响力。牛津大学出版社表示如果“Tuhao”的影响力持续，将有望在明年收入《牛津词典》。

材料二：“土豪”原意是指解放前地方上有钱有势的家族或个人，甚至是有钱有势的恶霸；当下流行语中的“土豪”一词被用来形容花钱无脑的人和极爱炫耀的族群，后又衍生出其它多种含义。

对上述材料所述内容，你有什么看法?请简述。  (要求：表达简明连贯，言之成理， 150字左右)

答：___________________________________________________________

水上水下活动中出现哪些行为或情形，海事管理机构可进行处罚？

开放性气胸引起急性循环功能紊乱的主要机制是

A．纵隔扑动，静脉血回流受阻

B．血容量不足

C．心脏受压

D．伤侧肺被压缩

E．健侧肺被压缩