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问题 单项选择题

睡眠不足是引起工作事故的众所周知的原因。许多医生经常连续24小时或更长时间不睡觉，然而在同事之间做的常规检查中，这些医生很少有被诊断为睡眠不足。
　　因此没有理由担心习惯性睡眠不足会导致广泛的医疗事故。
　　对下列哪个问题的回答最有助于评价上面的论述( )

A．诊断为睡眠不足的医生是否同时也表现出其他与睡眠无关的疾病征兆

B．医生习惯性睡眠不足是否会严重减弱他判断他人睡眠不足征兆的能力

C．是否除了习惯性睡眠不足之外还有其他的医生本身的因素而导致工作失误

D．在最近接受治疗的人当中，相信医生有时受睡眠不足之苦的人占多大比例

答案

参考答案：B

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 sentence "our life span outpaces our usefulness" means we can live longer ______.

A．and make progress

B．and do more work

C．but move slowly

D．but become useless
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配伍题 B型题

成人Ⅱ度轻度烧伤()
成人Ⅱ度中度烧伤()
成人Ⅱ度重度烧伤()
成人Ⅱ度特重度烧伤()

A．10%～29%

B．≤9%

C．30%～49%

D．＜50%

E．＞50%
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