不属于胃镜检查的并发症是()。 A.下颌关节脱位 B.食管或胃穿孔 C.腮腺肿大 D

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问题:

不属于胃镜检查的并发症是()。

A.下颌关节脱位

B.食管或胃穿孔

C.腮腺肿大

D.心动过速

E.心搏骤停

考点:肾内科学(医学高级)诊断学基础诊断学基础题库
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引起神经细胞兴奋的阈电位是指细胞膜()

A.对Ca2+通透性突然增大时的临界膜电位值

B.对K+通透性突然减小时的临界膜电位值

C.对K+通透性突然增大时的临界膜电位值

D.对Na+通透性突然增大时的临界膜电位值

E.对Na+通透性突然减小时的临界膜电位值

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18世纪法国著名的教育万能论者是().

A、爱尔维修强调教育和环境

B、拉美特利人是机器

C、狄德罗意识是人脑的属性

D、卢梭<社会契约论><爱弥儿>

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It is no longer just dirty blue-collar jobs in manufacturing that are being sucked offshore but also white-collar service jobs, which used to be considered safe from foreign competition. Telecoms charges have tumbled, allowing workers in far-flung locations to be connected cheaply to customers in the developed world. This has made it possible to offshore services that were once non-tradable. Morgan Stanley’s Mr. Roach has been drawing attention to the fact that the "global labour arbitrage" is moving rapidly to the better kinds of jobs. It is no longer just basic data processing and call centres that are being outsourced to low-wage countries, but also software programming, medical diagnostics, engineering design, law, accounting, finance and business consulting. These can now be delivered electronically from anywhere in the world, exposing skilled white-collar workers to greater competition.
The standard retort to such arguments is that outsourcing abroad is too small to matter much. So far fewer than lm American service-sector jobs have been lost to off-shoring. Forrester Research forecasts that by 2015 a total of 3.4m jobs in services will have moved abroad, but that is tiny compared with the 30m jobs destroyed and created in America every year. The trouble is that such studies allow only for the sorts of jobs that are already being off-shored, when in reality the proportion of jobs that can be moved will rise as IT advances and education improves in emerging economies.

Which of the following statements is the typical reply concerning off-shoring
[A] Service-sector has sustained a great loss.
[B] White-collar workers will not have a narrow escape.
[C] Most economists underestimated the effects of off-shoring.
[D] Outsourcing abroad has no significant impact.


Alan Blinder, an economist at Princeton University, believes that most economists are underestimating the disruptive effects of off-shoring, and that in future two to three times as many service jobs will be susceptible to off-shoring as in manufacturing. This would imply that at least 30% of all jobs might be at risk. In practice the number of jobs off-shored to China or India is likely to remain fairly modest. Even so, the mere threat that they could be shifted will depress wages.
Moreover, says Mr. Blinder, education offers no protection. Highly skilled accountants, radiologists or computer programmers now have to compete with electronically delivered competition from abroad, whereas humble taxi drivers, janitors and crane operators remain safe from off-shoring. This may help to explain why the real median wage of American graduates has fallen by 6% since 9000, a bigger decline than in average wages.
In the 1980s and early 1990s, the pay gap between low-paid, low-skilled workers and high-paid, high-skilled Workers widened significantly. But since then, according to a study by David Autor, Lawrence Katz and Melissa Kearney, in America, Britain and Germany workers at the bottom as well as at the top have done better than those in the middle-income group. Office cleaning cannot be done by workers in India. It is the easily standardised skilled jobs in the middle, such as accounting, that are now being squeezed hardest. A study by Bradford Jensen and Lori Kletzer, at the Institute for International Economics in Washington D. C., confirms that workers in tradable services that are exposed to foreign competition tend to be more skilled than workers in non-tradable services and tradable manufacturing industries.

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三大运营商的3G技术的网络标准分别是什么()、()、()。

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第四方物流可以通过对整个供应链的影响力,提供综合的供应链解决方案,为客户带来更大的______。

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