问题 单项选择题 案例分析题

35岁广州某大医院男医生,在收治传染性非典型肺炎(SARS)病区工作,现出现发热伴咽痛流涕1天。查体:T39.5℃,B23次/分,BP110/65mmHg,无皮疹,皮肤无黄染,双肺呼吸音粗,未闻及啰音。当天X线胸片检查示:双肺纹理增粗,余未见异常。

下列处置哪项正确()

A.进行医学观察,暂不用网络直报

B.2小时内进行网络直报

C.12小时内进行网络直报

D.12小时内对患者居所采取消毒措施

E.24小时内对患者居所采取消毒措施

答案

参考答案:B

解析:

1.对于近2周内有与SARS患者或疑似SARS患者接触史,有发热、咽痛临床症状,但尚无肺部X线影像学改变者,应作为疑似病例,留院观察,收入单人观察室,故答案为B。

2.各级各类医疗机构和卫生人员发现非典型肺炎病例或疑似病例后于2小时内进行网络直报。接到非典型肺炎疫情报告后,城镇6小时内,农村应在12小时内采取消毒措施,对疫点(包括患者住所、工作场所等)进行消毒处理,故答案为B。3.患者发热伴咽痛流涕1天,需考虑普通感冒、上呼吸道感染、流感,SARS流行病学史需考虑传染性非典型肺炎(SARS)的可能,患者无咳嗽胸痛,双肺纹理增粗,余未见异常,故不考虑普通肺炎的可能,答案为E。

单项选择题

The sudden, dramatic explosion in value of online social media sites like Facebook and Twitter is reminiscent of the rise, about 15 years ago, of the online businesses that created the "dotcom bubble. " The Internet was far less widely used than it is today. Still, visionaries saw the potential for the Internet we have today, so virtual companies sprung up and grew like weeds as investors threw money their way. Some, like Google and Amazon, developed an enduring online presence and lasting financial value. But far too many quickly lost value when it became apparent that their rapid growth wasn’t yielding revenue.

So, how much is Facebook’s network of users really worth The potential is clear—when so many people are gathered in one virtual place, offering so much personal information about themselves, they create an unprecedented platform for targeted advertising. Or they would, if they were on the network to shop. When eBay and Amazon suggest products to their customers, they’re talking to people who’ve already proven that they’re interested in buying similar products. People go on Facebook for a variety of reasons-to catch up with old friends, share pictures, make new acquaintances, and talk, sometimes endlessly, about themselves. Whether they’ll appreciate having their virtual conversations interrupted by advertising, targeted or not, remains unclear.

It’s also unclear whether Facebook will actually be able to share information about its users’ browsing habits with advertisers. Complaints about the ineffectiveness of Facebook’s privacy policies have arisen in multiple countries, part of a larger social concern about how private information gets used on line. In December, the Federal Trade Commission issued a proposed framework that, among other things, would permit Facebook users to block advertisers from accessing information about their online interests. If that framework is implemented and widely used by Facebook subscribers, it could seriously impair the site’s value as a potential platform for targeted marketing.

What is clear is that Goldman Sachs has a significant interest in Facebook’s financial value, at least for the short term. Goldman Sachs’ decision to invest heavily in Facebook has had some interesting impacts. For one thing, the investment has allowed Facebook an opportunity to postpone issuing an IPO. That means that, at least for the moment, Facebook doesn’t yet have to disclose its finances or publicly address investor complaints.

Goldman Sachs’ investment also puts the firm in an ideal position to handle Facebook’s IPO when it eventually is issued, perhaps sometime next year. That, of course, has the potential to generate substantial revenues for Goldman Sachs’ clients. Google’s 2004 IPO raised an initial $1.2 billion for the company. After all the propaganda, Facebook’s IPO can hardly be expected to raise less. However, there remains a significant question as to whether Facebook’s potential for generating income is more virtual than real. If it turns out that Facebook can’t live up to its potential for generating advertising revenue, venture capitalists who invest for the long term may get burned.

One dilemma faced by social media like Facebook is that()

A. its customers often exchange private information on it

B. advertisers often interrupt its customers’ conversations

C. the FTC threatens to limit its service with new regulations

D. the users’ private information is misused by advertisers

单项选择题