在养鱼缸内饲养金鱼，如果放养过多，会发现金鱼频频“浮头”，并可能导致死亡，其死亡

颈椎病行前路手术及植骨椎体融合术后护理最应重视（）

A.颈前屈位，两侧颈肩放置沙袋

B.观察生命征

C.注意伤口出血，密切观察呼吸状态

D.加强心理护理

E.预防并发症

此次世界博览会提倡和鼓励人们在实践基础上不断创新。这是因为（）

A.创新是科学技术进步的动力

B.创新是社会发展和变革的基础

C.创新是检验实践唯一标准

D.创新是人类的最高价值追求

阅读理解。

                                              The Cost of Higher Education

     Individuals (个人) should pay for their higher education.

    A university education is of huge and direct benefit to the individual. Graduates earn more than

nongraduates. Meanwhile, social mobility is ever more dependent on having a degree. However, only

some people have it. So the individual, not the taxpayers, should pay for it. There are pressing calls on

the resources (资源) of the government. Using taxpayers' money to help a small number of people to

earn high incomes in the future is not one of them.

    Full government funding (资助) is not very good for universities. Adam Smith worked in a Scottish

university whose teachers lived off student fees. He knew and looked down upon 18thcentury Oxford,

where the academics lived comfortably off the income received from the government. Guaranteed

salaries,  Smith argued, were the enemy of hard work；and when the academics were lazy and

incompetent, the students were similarly lazy.

    If students have to pay for their education, they not only work harder, but also demand more from their

teachers. And their teachers have to keep them satisfied. If that means taking teaching seriously, and

giving less time to their own research interests, that is surely something to celebrate.

    Many people believe that higher education should be free because it is good for the economy (经济).

Many graduates clearly do contribute to national wealth, but so do all the businesses that invest (投资)

and create jobs. If you believe that the government should pay for higher education because graduates

are economically productive, you should also believe that the government should pay part of business

costs. Anyone promising to create jobs should receive a gift of capital from the government to invest.

     Therefore, it is the individual, not the government, who should pay for their university education.

1.The underlined word "them" in Paragraph 2 refers to ________.

A. taxpayers      

B. pressing calls

C. college graduates  

D. government resources

2.The author thinks that with full government funding ________.

A. teaching are less satisfied

B. students are more demanding

C. students will become more competent

D. teachers will spend less time on teaching

3.The author mentions businesses in Paragraph 5 in order to ________.

A. argue against free university education

B. call on them to finance students' studies

C. encourage graduates to go into business

D. show their contribution to higher education

社会主义荣辱观是实现以人为本、科学发展的（）

A.理论基础

B.基本准则

C.道德基石

D.行为规范

大气中的二氧化碳来源于（）。

A、呼吸作用

B、有机物质分解

C、碳酸盐岩体的分解作用

D、燃烧

E、火山活动