最易造成血栓形成的瓣膜病是A.二尖瓣狭窄 B.主动脉瓣狭窄 C.主动脉瓣关闭不全 D

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问题:

最易造成血栓形成的瓣膜病是

A.二尖瓣狭窄

B.主动脉瓣狭窄

C.主动脉瓣关闭不全

D.二尖瓣关闭不全

E.三尖瓣狭窄

考点:卫生资格考试(中初级)胸心外科主治医师胸心外科学专业实践能力
题型:单项选择题

根据路线价的基本原理,特定街道上各宗土地的单位面积地价随()。

A.土地开发成本的高低而升降

B.使用者的改变而升降

C.临街深度的增加而递减

D.经营管理水平的优劣而升降

题型:单项选择题

在一定条件下,下列药物的主要成分都能发生①取代②加成③水解④中和四种反应的是

①维生素       ②阿司匹林     

③芬必得     ④扑热息痛

A.①②

B.①③

C.②④

D.③④

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Hikosaburo Yasuda of Nakano, Japan, plans to buy an iPad to keep up with junior members in his computer club."It's important to always try new things, otherwise you get left behind," he says.  

Yasuda is 95 years old.He and his colleagues, looking for easier ways to search the Web and send e-mail, represent a potential market for Apple (AAPL)'s iPad.The company has sold 3.27 million iPads since its launch in April, but doesn't break down sales figures by customer age, making it impossible to know with certainty how many seniors are buying them.However, anecdotal evidence suggests it's a hit with the elderly.

The iPad's intuitive interface (直观界面) makes it appealing to senior citizens around the world, says Takahiro Miura, a researcher at the University of Tokyo: "The iPad is a good tool for the elderly because it's very forgiving of mistakes." Miura's team uses computers to help train senior citizens to rejoin the workforce."Unlike the PC, it doesn't require previous knowledge," he says.

James Cordwell, a technology analyst at Atlantic-Equities in London, says the iPad's popularity with the elderly is helping Apple reach beyond its traditional base of younger customer. “The world’s population, especially in developed markets, is getting older, and it’s probably a market where Apple has least entered,” Cordwell says. Elderly users are “a key source of growth for them in the future.”

The elderly in Japan, who make up an estimated 22 percent of the population, may prove particularly receptive to the iPad. They spend more than any other group in the country except for those under 30, according to a report by Japan's Cabinet Office. Motoo Kitamura, 78, a former gas salesman, bought an iPad to help him communicate with his 2-year-old grandson and stave off dementia. "Trying new things like that is a good mental exercise," he says.

小题1:The underlined part “a hit” in Paragraph 2 may probably mean “     ”.

A.a hard strike

B.a heavy burden

C.quite popular

D.very familiar小题2:Which of the following is NOT an advantage of the iPad over the PC?

A.It has intuitive interface.

B.It is easier to operate.

C.It is more accessible to beginners.

D.It is a good mental exercise.小题3:What can we learn from the passage?

A.The people under thirty are the largest consumers in Japan except for the elderly.

B.The traditional customers of AAPL’s products are usually the yong.

C.The elderly will soon grow into the largest customer group in place of the young.

D.The elderly in Japan have great enthusiasm for latest hi – tech products.小题4:What could be the best title for the passage?

A.The iPad leads Apple to the elderly

B.Ipad hits Japan’s store shelves

C.Ipad’s arrival in Tokyo causes Uapanese to reflect

D.AAPL attempts to balance the old and the yong

题型:单项选择题


[说明]阅读以下资料后,回答问题。
Apache服务器的设置文件位于/usr/local/apache/conf/目录下,传统上使用3个配置文件httpd.conf,access.conf和srm.conf来配置Apache服务器的行为。httpd.conf提供了最基本的服务器配置,是对守护程序httpd如何运行的技术描述;srm.conf是服务器的资源映射文件,告诉服务器各种文件的MIME类型,以及如何支持这些文件;access.conf用于配置服务器的访问权限,控制不同用户和计算机的访问限制;这3个配置文件控制着服务器的各个方面的特性,因此为了正常运行服务器便需要设置好这3个文件。

[问题1]
如何设置httpd.conf,使得Apache服务器监听在特定的端口

题型:单项选择题

患者,女,27岁,左下后牙曾有咬合痛,5天前出现自发的剧烈,持续性跳痛。检查:左下7,叩(+++),根尖区黏膜隆起,扪诊波动感明显。X线片示根周膜增厚。诊断为左下7急性根尖周炎,给予切开排脓,髓腔开放处理。请问黏膜下脓肿切排的适宜时机是()

A.急性炎症后的1~2天

B.急性炎症后的2~3天

C.急性炎症后的4~5天

D.急性炎症后的8~9天

E.急性炎症后的9~10天

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