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问题 单项选择题

超媒体是—种典型的______。

A．信息管理技术

B．数据库管理技术

C．数据管理技术

D．电子邮件软件

答案

参考答案：C

解析：[知识点] 超文本、超媒体与Web浏览器[评析] 超媒体是指通过链接的方式将多种媒体的数据组合在一起的一种技术，它是一种典型的数据管理技术。

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A Recent Erymology of the Word "Culture"“文化”一词的新词源
Look in an old dictionary—say, a pre-1960 Webster’s—and you’ll likely find a definition of culture (1) looks something like this: "1．The cultivation of soil. 2．The raising, improvement, or development of some plant, animal (2) product. " This use of the word has its roots in the ancient Latin word cultura, "cultivation" or "tending," and (3) entrance into the English language had begun by the year 1430. By the time the Webster’s definition above was (4) , another definition had begun to take precedence over the old Latin denotation; culture was coming to mean "the training, (5) , and refinement of mind, tastes, and manners" (Oxford English Dictionary). The OED traces this definition, which today we associate (6) the phrase "high culture," back as far as 1805; by the middle of the 20th century, it was (7) becoming the word’s primary definition.
However, if you try a more modem source, like the American Heritage English Dictionary, (8) find a primary definition of culture which is substantially different than either of the two given above: "The totality (9) socially transmitted behavior patterns, arts, beliefs, institutions, and all other products of human work and thought. " Why such a (10) , and in such a (relatively) short period of time Well, in the past 40 years, the use of the (11) "culture" has been heavily influenced by the academic fields of sociology and cultural anthropology. These fields have gradually brought (12) was once a minor definition of culture (the last of eight definitions given in the old 1958 Webster’s quoted (13) ) into the mainstream.
It is easy to imagine how the US society which was so focused on "socially transmitted (14) patterns" in the sixties would come to need a word to describe the object of its interest. The civil (15) movement during this era brought everyone’s attention to bear on cultural differences within US society, while the Vietnam War (16) to emphasize the position of the US culture in relation to other world cultures.
Over time, these new uses (17) the word culture have eclipsed its older meanings, those associated with cultivation of the land and the production of (18) . You might say that an aspect of US culture over the past 40 years is its fascination with the (19) of culture itself—a fascination which has brought about many changes in the way we speak and the (20) of words which we commonly use.

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单项选择题 共用题干题

患者男性，8岁，因“1小时前滑冰时不慎撞伤上前牙”来诊。口腔检查：右上1近中切角缺损，断面中心有一小红点，直径约0.5mm，探诊敏感，伴少量渗血。X线片：未显示根折及牙槽骨骨折，患牙根尖孔未发育完全。

关于活髓保存，叙述错误的是（）

A.牙髓切断术是过渡性方法，待根尖发育完成后宜行根管治疗

B.直接盖髓失败的年轻恒牙可改行活髓切断术

C.外伤露髓范围较小的患牙可行直接盖髓术

D.龋源性露髓的成熟恒牙首选直接盖髓术

E.牙髓钙化和内吸收是活髓保存治疗常见的并发症
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