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患者，男，25岁，左下后牙反复咬合痛1个月。检查：左卞6牙冠变色，冷热测无反应，电活力测试提示为死髓牙，X线片显示根尖周阴影。

主诉牙诊断为（）

A.慢性根尖周炎

B.慢性牙髓炎

C.急性牙周脓肿

D.牙髓钙化

E.急性牙髓炎

答案

参考答案：A

单项选择题

Anthropology is the study of human beings as creatures of society. It (1) its attention upon those. physical characteristics and industrial techniques, those conventions and values, which (2) one community from all others that belong to a different tradition.

The distinguishing mark of anthropology among the social sciences is that it includes for serious study other societies (3) our own. For its purposes any social (4) of mating and reproduction is as significant as our own. To the anthropologist our customs and those of a New Guinea tribe are two possible social schemes for (5) a common problem, and in so far as he remains an anthropologist he is (6) to avoid any weighting of one (7) the other. He is interested in human behavior, not as it is shaped by one tradition, our own, but as it has been shaped by any tradition (8) He is interested in a wide (9) of custom that is found in various cultures, and his object is to understand the way in which these cultures change and (10) , the different forms through which they express themselves and the (11) in which the customs of any peoples function in the lives of the (12) .

Now custom has not been commonly regarded as a (13) of any great moment. The inner workings of our own brains we feel to be uniquely (14) of investigation, but custom, we have a way of thinking, is behavior at its most commonplace. (15) , it is the other way round. Traditional custom is a mass of detailed behavior more astonishing than (16) any one person can ever evolve in individual actions. Yet that is a rather (17) aspect of the matter. The fact (18) first rate importance is the predominant role that custom (19) in experience and belief, and the very great varieties it may (20)

9（）

A.option

B.span

C.prototype

D.range
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单项选择题

工业革命极大地促进了生产力的发展，促进了社会的进步。

第三次工业革命与前两次工业革命相比，最明显的特征是( )

A．科学技术转化为生产力的速度空前加快

B．各领域涌现大量的新技术成果

C．对生产力产生巨大的推动力

D．奠定“二战”后世界政治经济新格局
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