肝脏病人拔牙前需做哪种必不可少的血液检查() A.出血时间 B.凝血时间 C.血小板

题型:单项选择题

问题:

肝脏病人拔牙前需做哪种必不可少的血液检查()

A.出血时间

B.凝血时间

C.血小板

D.血块收缩时间

E.凝血酶原时间

考点:广东住院医师广东住院医师口腔医学广东住院医师口腔医学模拟试卷(五)
题型:单项选择题

镁和氧气反应生成氧化镁是                  (填“化合反应”或“分解反应”) 

题型:单项选择题

男性,80岁,左半结肠切除术后第1天,突发呼吸困难,心率116/min,呼吸36/min,口唇发绀,呈三凹样呼吸,烦躁,血气分析pH7.32,PaO227mmHg,PaCO240mmHg,听诊右肺呼吸音明显减弱,左肺可闻及少量干啰音及轻度呼气相哮鸣音。

该患者呼吸困难最可能的原因是()

A.呼吸肌无力

B.误吸致肺不张

C.窒息

D.喉痉挛

E.脑血管意外

题型:单项选择题

以下不属于感受器的特性的是()

A、适宜刺激

B、换能作用

C、编码功能

D、适应现象

E、分析综合

题型:单项选择题

正式调研阶段是市场调研最主要、最关键的阶段,在这一阶段不包括()的步骤,

A.工作现场实地调查

B.设计调查表格和抽样方法

C.整理分析调查资料

D.决定收集信息的来源和方法

题型:单项选择题

A conventional teacher’s licensee usually requires a university degree in education plus an unpaid term of practice teaching. This has never made much sense. It excludes bright students who take degrees in other subjects, and might teach those subjects; it is costly and time-consuming for career-switchers, who must wait a year or more before they can enter a classroom; it is so rigid that private-school teachers or university professors with years of experience have to jump through hoops before they can start teaching in a state school. And there is virtually no evidence that it creates better teachers. For all that, it is ply backed by schools of education, which have a monopoly of teacher-training, and by teachers’ unions, whose members make more money when it is artificially hard for others to get into the profession.

Now, some 45 states and the Districts of Columbia offer an "alternative route" to a teacher’s licensee, up from only a handful in the 1980s. Alternative certification (AC) generally allows individuals with a university degree to begin teaching immediately after passing an entrance examination. These recruits, watched over by a mentor teach the subject they studied at university, and take education courses at a sponsoring university while drawing their salaries.

The traditional sort of American teacher is likely to be young, white and female. Alternative certification attracts more men and more non-whites. In Texas, for instance, roughly 90% of public-school teachers are white, but 40% of those who have joined through alternative certification are non-whites. The AC route also draws teachers willing to go where they are most needed. A survey of Troops to Teachers, a program that turns exsoldiers into public-school teachers (" Proud to serve again"), found that 39% of those taking part are willing to teach in inner-city schools, and 68% in rural areas.

Are they good teachers Officialdom is reluctant to release the details which might answer that question for certain. But anecdotal evidence suggests they do well. In New Jersey, which has been running this sort of program since 1984, rich districts, which can afford to be choosy, consistently hire more AC teachers than poor districts do. In Houston, Texas, where the Teach of America program (TFA) puts recent university graduates into poor communities as teachers, the most effective teachers are generally the TFA ones. " School principals are our biggest fans," Wendy Kopp, TFA’s president, says proudly.

So why not scrap the cumbersome teacher-licensing laws Frederick Hess, a professor at the University of Virginia, has written a paper for the Progressive Policy Institute arguing that teacher-licensing ought to be stripped to the bare essentials. Prospective teachers should be required only to hold a college degree, pass a test of essential skills, and be checked to make sure they do not have a criminal background. Other training is important, argues Mr. Hess, but the market, not state legislators, should decide what that training looks like. This notion of "competitive certification" has drawn favorable attention from the Bush administration.

What does the example of New Jersey ( Para. 4) illustrate()

A. Schools in rich districts are usually choosy

B. Official sources are careful on the success of AC

C. New Jersey has more need for teachers than elsewhere

D. AC has turned out good teachers for schools

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