1) A collection of data about a specific topic organized into rows and columns is called: a) a database b) a field c) a record d) a table 2) A text string that appears on a Webpage and is used by search engines to identify relevant URLs is called: a) foreign keys b) keywords c) primary keys d) a Boolean operator

排行榜

视觉风格

选项

切换模板

恢复自动保存: