护理人员在工作岗位的着装原则有哪些？

简述站间行车电话。

李某在县里有临街房屋12间，是祖遗房产。因为李某是孤寡老人，长期以出租房屋为生。1970年该县食品公司因扩大营业用房，便主动找李某协商要求买房，李某未同意。以后县食品公司又提出要求典当房屋，李某开始不同意，后经人说和，双方达成了房屋典当协议。协议规定："李某愿将12间房屋出典给县食品公司，典价2万元，典期无限，立约为凭"。双方在协议上签字盖章。李某与县食品公司之间确立的是什么法律关系()

A．买卖关系，因为协议声明典期无限

B．典权关系，因为协议虽声明典期无限，但实际履行时不能超过法律规定的最高期限

C．典权关系，但典权关系不合法，不能成立，因为规定的典期没有限制

D．买卖关系，但价格偏低，李某可要求另找差价

螺旋试验结果舵角与角速度曲线出现多值对应的环形，则表示船舶：（）

A.航向稳定性好

B.动航向不稳定

C.方向稳定

D.位置稳定

人们面临细菌感染压力时的第三线防卫是

A．健全的免疫系统

B．评估自身的健康状况

C．请医生、护士治疗

D．向家属求救

E．积极锻炼身体，增强体质

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 has changed since the introduction of AC（）

A. Schools now have more male than female teachers

B. Non-whites account for 40% of Texas’s school teachers

C. AC has turned a number of soldiers into teachers

D. The percentage of teachers willing to work in inner city has risen