超文本
参考答案：
超文本（Hypertext）是用超链接的方法，将各种不同空间的文字信息组织在一起的网状文本。
Refusing to invest in companies that sell tobacco products, alcohol, or products that are harmful to the environment would constitute a set of investment restrictions that would best be classified according to which one of the following investment constraint categories（）
A. Factors that are considered to be either legal or regulatory.
B. Style investing.
C. Unique needs and preferences.
城市邮政网具有（）的特点。
A.双重性
B.直接接触社会公众
C.与邮件处理过程相连接
D.点多线密，技术构成高，设施先进
