治疗伤寒慢性带菌者,首选的抗菌药物是()。 A.氯霉素 B.磺胺嘧啶 C.四环素 D

题型:单项选择题

问题:

治疗伤寒慢性带菌者,首选的抗菌药物是()。

A.氯霉素

B.磺胺嘧啶

C.四环素

D.氟喹诺酮类

E.红霉素

考点:中医皮肤与性病学(医学高级)中医皮肤与性病学(医学高级)题库
题型:单项选择题

当肝硬化患者肝细胞严重坏死时,会出现

A.ALT>AST

B.GGT升高

C.ALP活性升高

D.AST>ALT

E.MAO活性升高

题型:单项选择题
3个
3
4
与3的
1
4
计算结果相同.______.
题型:单项选择题

阅读理解。

      If you were to come up with a list of organizations whose failures had done the most damage to

the American economy in recent years, you would probably have to start with the Wall Street firms

that brought us the financial crisis. From there, you might move on to the automakers in Detroit.

     But I would suggest that the list should also include a less obvious nominee: public education.

     At its top level, the American system of higher education may be the best in the world. Yet in

terms of its core mission-turning teenagers into educated college graduates-much of the system is

failing.

     The United States does a good job enrolling (招生) teenagers in college, but only half of the

students who enroll end up with a bachelor's degree.

     So identifying the causes of the college dropout crisis in the world's largest economy matters

enormously, and a new book called "Crossing the Finish Line" tries to do precisely that. Its authors

are economists William Bowen and Michael McPherson, and a doctoral candidate Matthew Chingos.

The first problem they diagnose is something they call under-matching. It refers to students who

choose not to attend the best college they can get into. They instead go to a less selective one, perhaps

one that is closer to home or less expensive. About half of the low-income students with a grade-point

average of at least 3.5 in high school and an SAT score of at least 1,200 do not attend the best college

they could have. "I was really astonished by the degree to which well-qualified students from poor

families under-matched," said Mr. Bowen.

     In fact, well-off students attend the colleges that do the best job of producing graduates. Meanwhile,

lower-income students-even when they are better qualified-often go to colleges that excel (擅长) in

producing drop-outs. "It's really a waste," Mr. Bowen said, "and a big problem for the country." As the

authors point out, the only way to lift the college graduation rate significantly is to lift it among poor and

working-class students. Instead, it appears to have fallen.

     What can be done? Money is clearly part of the answer.

1. Which of the following would people first think of as a factor responsible for the American

    financial crisis according to this passage?

A. The government.

B. Public education.

C. The Detroit automakers.

D. The Wall Street firms.

2. What is a big problem with American higher education?

A. It is hard to enroll enough students into college.

B. Many colleges are experiencing low rate of graduation.

C. Many college students stay away from classes.

D. It is hard for many colleges to get financial aid from the government.

3. Why do some students under-match?

A. Because they have financial difficulty.

B. Because they face ambition crisis.

C. Because they lack confidence.

D. Because they can't get guidance.

4. The passage is mainly about _______.

A. problems with secondary American education and possible solutions

B. America's financial crisis, its cause and influence

C. low rate of American college graduation, its cause and its influence

D. relationship between American education and its economy

题型:单项选择题

转基因动物是怎样建立的?

题型:单项选择题

软件质量包含多方面的内容, (39) (40) 、可移植性、可复用性等是较为重要的质量特性。在软件开发中,必须采取有力的措施,以确保软件的质量,这些措施至少应包括: (41) (42) (43)

42()

A.在开发初期制订质量保证计划,并在开发中坚持实行

B.开发工作严格按阶段进行,文档工作应在开发完成后集中进行

C.严格执行阶段评审

D.要求用户参与全部开发过程,以监督开发质量

E.开发前选定或制定开发标准或开发规范,并遵照实施

F.争取足够的开发经费和开发人力的支持

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