网络营销与传统营销是一个整合的过程，这是因为互联网作为新兴的虚拟市场，它覆盖的群体只是整个市场中某一部分群体。

One of the key features of CBI is the use of authentic "input"—in other words, "real" reading but listening material: magazine and newspaper articles, poems, short stories, brochures, excerpts from textbooks written for native speakers of English, radio interviews, lectures, and advertisements.

A．and

B．or

C．and/or

D．nil