问题 单项选择题

下面关于文本的叙述,错误的是( )

A.简单文本仅由可显示(打印)的ASCII码字符(汉字)及“回车”、“换行”、“制表”等格式控制组成

B.丰富格式文本中可包含文字、图像、声音以及文字属性标志和控制命令

C.用文字处理软件Word得到的文本是丰富格式文本,文件名后缀是.txt

D.丰富格式文本的结构是线性结构

答案

参考答案:C

解析: 文本是由许多字符组成的。最简单的文本除了可显示/打印的ASCII字符 (汉字)及“回车”、“换行”、“制表”等用于格式控制的有限几个ASCII字符之外,几乎不包含任何其他信息。所以选项A正确。丰富格式文本除了包含文字、图像、声音外,还有许多文字属性标志和格式控制命令在内。丰富格式文本的结构是线性结构。所以选项B和D正确。用文字处理软件Word得到的文本是丰富格式文本,文件名后缀是.DOC。所以选项C错误。

单项选择题
单项选择题

Attempts to understand the relationship between social behavior and health have their origin in history. Dubos (1969) suggested that primitive humans were closer to the animals (1) they, too, relied’upon their instincts to stay healthy. Yet some primitive humans (2) a cause and effect relationship between doing certain things and alleviating (3) of a disease or (4) the condition of a wound. (5) there was so much that primitive humans did not (6) the functioning of the body, magic became an integral component ofthe beliefs about the causes and cures of heath (7) Therefore it is not (8) that early humans thought that illness was caused (9) evil spirit. Primitive medicines made from vegetables or animals were invariably used in combination with some form of ritual to (10) harmful spirit from a diseased body.

One of the. earliest (11) in the Western world to formulate principles of health care based upon rational thought and (12) of supernatural phenomena is found in the work of the Greek physician Hippocrates. The writing (13) to him has provided a number of principles underiying modern medical practice. One of his most famous (14) , the Hippocratic Oath, is the foundation of contemporary medical ethics.

Hippocrates also argued that medical knowledge should be derived from a (15) of the natural science and the logic of cause and effect relationships. In this (16) thesis, On Air, Water, and Places, Hippocrates pointed out that human well-being is (17) by the totality of environmental (18) : living habits or lifestyle, climate, geography of the land, and the quality of air, and food. (19) enough, concerns about our health and the quality of air, water, and places are (20) very much written in twentieth century.

5()

A.While

B.Although

C.Provided

D.Since