是广告公司的一个对外职务，负责调节公司的客户广告链接，为公司寻找广告资源。
随着互联网的传播和采用，用此媒介执行的贸易量近年来急速增长。
The amount and volume of trade that is conducted over such mediums has increased manifold over the years with the spread and adoption of Internet.
XML是一种通用数据表达法。在使用不同程序语言编写的程序和执行不同的机器指令之间，可以使用XML作为交换媒介。
XML is a common data representation that can be used as the medium of exchange between programs that are written in different programming languages and execute different kinds of machine instructions.
但是，现在数据库很普遍的被记录在磁化媒介上，而且计算机应用程序利用它执行必要的存储和检索操作。
But now databases are commonly recorded on magnetizable media, and computer programs are required to perform the necessary storage and retrieval operations.
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