The central public service advertisement, the one who sneezed in the elevator, became a primitive man. What is the advertising word? Come on, come on.

1, advertising word civilization, prehistoric 1 ten thousand years.

2. Public service advertisements are advertisements designed for the purpose of seeking public interests and improving welfare benefits; It is an advertisement for an enterprise or social organization to explain its functions and responsibilities to the society to consumers, indicating that it is not only seeking profits from business, but also asking and participating in how to solve social and environmental problems. It refers to advertisements that are not for profit and serve the vital interests of the public and social customs. It has three characteristics: social benefit, realistic theme and performance appeal.