下列关于SQL Server数据库系统安全性的叙述中，哪个是不正确的？（）A．数据库

心跳呼吸骤停的患者应最先进行的抢救措施是（）

A.气管切开

B.建立静脉通路

C.简易呼吸机

D.气管插管

E.口对口人工呼吸

常压塔采用蒸汽汽提是为了（）

A.提高油品的蒸汽压

B.降低油气分压

C.提高油气分压

D.降低油品蒸汽压

为什么说纠正酸中毒是治疗休克的一个重要环节？

根据《工程建设项目施工招标投标办法》(国家八部委局第30号令)，工程施工招标资格审查应主要审查潜在投标人或者投标人是否符合( )等。

A．具有独立订立合同的权利

B．具有履行合同的能力

C．没有处于被责令停业，投标资格被取消

D．在职职工超过100人

E．在最近三年内没有骗取中标和严重违约及重大工程质量问题

The modern university is the ideal environment for the creation and transfer of knowledge that drives national competitiveness in an increasingly global era. Its most effective form is the American adaptation of the European model, in which teaching, leaning and research are integrated into a single institution. Indeed, the American university has proved capable of almost anything, from developing advanced economic theories to creating new life forms.

Many national leaders understand that the university is the critical catalyst for America’s adaptability, economic robustness and emergence as a great power. And they are moving aggressively to catch up. The universities created by emerging economies beginning in the 1990s and through 2020 will likely play a decisive role in reshaping the global balance of economic power.

That is bad news for the United States. The past two decades of American university development have been characterized largely by self-satisfaction arising from steady progress by the top 20 or so research universities. And America as a nation has 1Seen coasting. Since 2000, the United States has lost its edge in the graduation of engineers and technologists. The country no longer dominates scientific discovery, innovation or exploration. Most important, the United States has not launched any effort to build new institutions to accommodate its increasingly diverse population of more than 300 million.

The result is that America’s university system, despite its historical pre-eminence, has ceased to grow. Furthermore, America’s university system has failed to adapt to the dramatic demographic shifts occurring as a result of social mobility and immigration.

America needs to realize that its universities face real competition from the rest of the world to attract the best and the brightest, to secure resources and to provide environments that educate and inspire. This is not to say that the best American universities are no longer the leaders in discovery and innovation. It is to say that the success of the higher-education system must be measured by more than just innovations. Its long-term performance depends on its ability to provide learning to a broad cross sections of citizens, to advance national proficiency in math and science and to create an adaptable work force, as well as to develop a national appreciation for discovery, entrepreneurship and the creative process.

In China and elsewhere, these are the goals of the new universities being built. In the United States, we need to move from a national self-confidence based on past success to one built on the knowledge that we are advancing a system of higher education that will meet our future needs. This will require that policymakers, business leaders and universities rededicate themselves to creating comprehensive learning and discovery environments; design entirely new models and methods for teaching, and then take action to implement them.

What is the problem that US universities have faced since 2000（）

A. Loss of the predominant position in artistic innovations

B. Lack of the reestablishment of famed universities

C. Failure to attract the best brains throughout the world

D. Need of a comprehensive learning and studying environment