对稳定型心绞痛病人,下列哪些因素增加围术期急性心肌缺血的可能性()A.日常活动就可诱

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问题:

对稳定型心绞痛病人,下列哪些因素增加围术期急性心肌缺血的可能性()

A.日常活动就可诱发心绞痛

B.心率较快

C.频发的室早

D.多次的心肌梗死

E.兼有高血压

考点:麻醉(医学高级)心脏及大血管手术麻醉心脏及大血管手术麻醉题库
题型:多项选择题

爱迪生曾经说过:“没有失败,只有离成功更近一步。”对这句话理解不正确的是: [ ]

A.只要态度认真,大胆实践,失败是完全可以避免的

B.失败是成功之母

C.在失败中总结经验,更加有助于成功

D.这是一种充满自信的生活态度

题型:多项选择题

Thanks to the Web, We’re Alone Together and Loving it

There's a professor, Barry Wellman, at the University of Toronto in Canada who has come up with a term to describe the way a lot of us North Americans interact these days. And now a big research study confirms it.

Barry Wellman's term is "networked individualism." It's not the easiest concept to grasp. In fact, the words seem to contradict each other. How can we be individualistic and networked at the same time? You need other people for networks.

Here's what he means. Until the Internet and e-mail came along, our social networks involved flesh-and-blood relatives, friends, neighbors, and colleagues at work. Some of the interaction was by phone, but it was still voice to voice, person to person, in real time.

But the latest study by the Pew Internet and American Life Project confirms that for a lot of people, electronic interaction through the computer has replaced a great deal of social interchange. A lot of folks Pew talked with say that's a good thing, because of concerns that the Internet was turning us into hermits who shut out other people in favor of a make-believe world on flickering computer screens.

To the contrary, the Pew study discovered the Internet has put us in touch with more real people than we'd have ever imagined. Helpful people, too. We're turning to an ever-growing list of cyber friends for advice on careers, medical crises, child-rearing, and choosing a school or college. About 60 million Americans told the Pew that the Internet plays an important or crucial role in helping them deal with major life decisions.

So we networked individuals are pretty tricky: We're keeping more to ourselves, while at the same time reaching out to more people, all with just the click of a computer mouse!

小题1:The Pew study was conducted in _____.

A.The United States

B.Canada

C.The U.S. and Canada

D.Europe小题2:Which of the following has happened since the invention of the Internet and email?

A.People are talking on the phone more than ever.

B.Interaction through the computer has replaced a lot of person to person interaction.

C.Americans are turning into hermits.

D.Sixty million Americans have bought computers.小题3:Which of the following was NOT one of the discoveries of the Pew study?

A.The Internet has put us in touch with more people than expected.

B.People use the Internet to get advice on careers, medical problems, and other questions.

C.For many Americans, the Internet plays an important role in helping them make important decisions.

D.“Internet addiction” is a growing problem among people who use computers.小题4:What does the bolded words “reach out” in the last paragraph mean?

A.Connect with.

B.Play a trick.

C.Make a decision.

D.Stay alone.

题型:多项选择题

设有关系模式R(A,B,C,D),在其上的函数依赖集为:
F=A→C,B→AC,D→AC,C→A)
①计算(CD)+
②求R的码。

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现行交易规则规定,出现无法申报的交易席位数量超过证券交易所已开通席位总数的15%以上的交易异常情况,证券交易所要实行临时停市。( )

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设备施工检修时,施工检修部门应在车站行车室(或信号楼,调度集中区段为调度所调度台)派(),办理登销记、联系要点手续。

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