男性，40岁，右胸被刀刺伤2小时，呼吸困难。体格检查：右胸壁创口内有活动性出血，并有气体溢出，血压10/7kPa，脉搏140次／分。
以上临床表现是下列何种情况的特点（）
A.肺气肿和血胸
B.开放性气胸
C.开放性气胸和血胸
D.张力性气胸和血胸
E.反常呼吸
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Is global warming killing the Maldives? The Maldives(马尔代夫) is one of the most beautiful countries in the world. Every year, millions of go there to enjoy the wonderful scenery. And in recent years, more and more people would like to visit it, ? Because the little island country is . If global warming , say scientists, the country will go down into the ocean within 100 years. That means the Maldives have disappeared by 2100. The Maldives in the Indian Ocean. It is the country on earth—its highest point is only 2.4m above sea level. Greenhouse gas emissions（排放）, global temperature and sea levels will rise 9cm and 88cm by 2100. If scientists are , most of the Maldives will be covered with water in years. Last October, Maldivian President Mohamed Nasheed and his cabinet（内阁）held the world’s first underwater cabinet meeting to make the world the terrible results from global warming to their own country. In December, he at the 2009 United Nations Climate Change Conference（大会） in Copenhagen, trying to ask for help from the world for country. The president even has a to buy a new homeland and move his country and people to a new place. The Moldavian government has been doing all it can to fight the . But the fate（命运）of the islands is in the world’s hands. No one wants to see this little island country disappear from the world.
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已知函数f(x)=
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依次填入下段文字中括号里的词语，最恰当的一组是（ ）
艾青说：“我所努力的对诗的要求是四个方面：（ ），有意识地避免用华丽词藻来掩饰空虚；（ ），以一个意象来表明一个感觉和观念；（ ），以全部力量去完成自己所选择的主题；（ ），不含糊其词，不写为人费解的思想，决不让读者误解和坠五里雾中。”
A．朴素集中单纯明快
B．单纯 朴素 明快 集中
C．朴素 单纯 集中 明快
D．单纯 集中 明快 朴素
肾小球肾炎可并发不同程度的（），因而发生眼底病变。
A、高血压
B、糖尿病
C、动脉粥样硬化
、代谢紊乱
各地建筑安全主管部门及产权单位和使用单位应对工具式脚手架建立设备技术档案，其主要内容应包括：机型、编号、出厂日期、验收、检修、试验、检修记录及（）情况