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问题 单项选择题

患者，女，人工流产术后 * * 不规则出血3个月，经2次刮宫术均未见明显妊娠残留组织，B超见子宫增大如妊娠2个月，宫底部3cm×4cm结节，内部回声杂乱并有部分强回声，其最可能的诊断为（）。

A.人工流产术后宫腔感染

B.宫外孕

C.绒毛膜癌

D.侵蚀性葡萄胎

E.人工流产不全

答案

参考答案：C

填空题

精卵结合的部位是在______，形成了______，意味着______的开始．
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单项选择题

Modern industrial society grants little status to old people. In fact, such a society has a system of built-in obsolescence. There is no formal system for continuing our education throughout our life in order to keep up with rapidly changing knowledge. When our education and job skills have grown obsolete, we are treated exactly like those who have never gained an education or job skills and are not encouraged or given the opportunity to begin anew.As a society becomes more highly developed, the overall status of older people diminishes. Improved health technology creates a large pool of old people, who compete for jobs with the young. However, economic technology lowers the demand for workers and creates new jobs for which the skills of the aged are obsolete, forcing older people into retirement. At the same time, young people are being educated in the new technology and are keeping pace with rapid changes in knowledge. Finally, urbanization creates age-segregated neighborhoods. Because the old live on fixed incomes, they must often live in inferior housing. All these factors — retirement, obsolete knowledge and skills, inferior standards of living — lower the status of the aged in society.A century ago, when one could expect to live only to 50 or so, the life span more or less coincided with the occupation and family cycle. But today the average life span allows for fifteen to twenty years of life after these cycles. It appears that our life span is outpacing our usefulness in society.

The more highly developed a society is,________.

A．the more advanced technology will be

B．the larger the number of people will be

C．the more diminished old people’s status will be

D．the lower the overall status of the people will be
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