问题 单项选择题 A1型题

患者女,31岁。停经8个月,孕激素试验有出血,血FSH、LH正常。垂体兴奋试验LH不增高。诊断为“继发性闭经”。该患者最有可能病变部位为()

A.甲状腺

B.卵巢

C.下丘脑

D.垂体

E.子宫

答案

参考答案:D

解析:继发性闭经按病变区可分为4种,其中以下丘脑闭经最常见,依次为垂体,卵巢及子宫性闭经。PRL升高者,测定TSH,TSH升高者为甲状腺功能减退。PRL正常,FSH>40U/L,提示卵巢功能衰竭;若LH/FSH比例≥2~3时,应怀疑多囊卵巢;孕激素试验无出血者,雌孕激素序贯试验阴性,提示子宫内膜有缺陷或被破坏,可诊断为子宫性。孕激素试验有出血,血FSH、LH正常,垂体兴奋试验LH不增高,可判断为垂体病变引起的闭经,如LH增高为下丘脑病变引起的闭经,故排除C,选D。

单项选择题
单项选择题

Education is one of the key words of our time. A man, without an education, many of us believe, is an unfortunate victim of unfortunate circumstances deprived of one of the greatest twentieth-century opportunities. Convinced of the importance of education, modern states "invest" in institutions of learning to get back "interest" in the form of a large group of enlightened young men and women who are potential leaders. Education, with its cycles of instruction so carefully worked out, is punctuated by textbooks--those purchasable wells of wisdom--what would civilization be like without its benefits

So much is certain: that we would have doctors and preachers, lawyers and defendants, marriages and births; but our spiritual outlook would be different. We would lay less stress on "facts and figures" and more on a good memory, on applied psychology, and on the capacity of a man to get along with his fellow-citizens. If our educational system were fashioned after its bookless past we would have the most democratic form of "college" imaginable. Among the people whom we like to call savages all knowledge inherited by tradition is shared by all; it is taught to every member of the tribe so that in this respect everybody is equally equipped for life.

It is the ideal condition of the "equal start" which only our most progressive forms of modern education try to reach again. In primitive cultures the obligation to seek and to receive the traditional instruction is binding on all. There are no "illiterates"--if the term can be applied to peoples without a script--while our own compulsory school attendance became law in Germany in 1642, in France in 1806, and in England 1976, and is still non-existent in a number of "civilized" nations. This shows how long it was before we considered it necessary to make sure that all our children could share in the knowledge accumulated by the "happy few" during the past centuries. Education in the wilderness is not a matter of monetary means. All are entitled to an equal start. There is none of the hurry that, in our society, often hampers the full development of a growing personality. There, a child grows up under the ever-present attention of his parents; therefore the jungles and the savages know of no "juvenile delinquency". No necessity of making a living away from home results in neglect of children, and no father is confronted with his inability to "buy" an education for his child.

Notes: juvenile delinquency 青少年犯罪。

The best title for this text is()

A. The Significance of Education

B. Educational Investment and Its Profit

C. Education and Modern Civilization

D. Education: A Comparison of Its Past and Its Present