单选题 Direct adverting includes all forms of sales appeals, mailed, delivered, or exhibited directly to the prospective buyer of an advertised product or service, without use of any indirect medium, such as newspapers or television. Direct advertising logically may be divided into three broad classifications, namely, direct-mail advertising, mail order advertising, and unmailed direct advertising.
All forms of sales appeals that are sent through the mails are considered direct-mail advertising. The chief functions of direct-mail advertising are to familiarize prospective buyers with a product, its name, its maker, and its merits and with the product's local distributors. The direct-mail appeal is designed also to support the sales activities of retailers by encouraging the continued patronage of both old and new customers.
When no personal selling is involved, other methods are needed to persuade people to send in orders by mall. In addition to newspapers, magazines, radio, and television, other special devices order promotions are designed to accomplish a complete selling job without salespeople.
Used for the same broad purposes as direct-mall advertising, unmailed direct-mail advertising, includes all forms of indoor advertising displays and all printed sales appeals distributed from door to door, handed to customers in retail stores or conveyed in some other manner directly to the recipient.
With each medium competing keenly for its share of the business, advertising agencies continue to develop new techniques for displaying and selling wares and services. Among these techniques have been vastly improved printing and reproduction methods in the graphic field, adapted to magazine advertisements and to direct-mail enclosures; the use of color in newspaper advertisements and in television; and outdoor signboards more attractively designed and efficiently lighted. Many subtly effective improvements are suggested by advertising research.

单选题 Direct advertising ______.
A. includes all forms of sales appeals to the prospective buyer
B. is produced mainly for newspaper or television
C. is an activity by which real products are shown to buyers
D. uses post as a chief means to contact prospective buyers

单选题 Direct-mail advertising ______.
A. uses letters as a chief means of providing information
B. sends old customers detailed information about new products
C. uses letters to tell prospective buyers about the local sellers
D. sends over the prospective buyers sample products by parcels

单选题 The word "prospective" in the first sentence of the passage means ______.
A. would be B. prosperous C. rich D. old

单选题 The chief function of unmailed advertising is ______.
A. to send sample products from door to door
B. to familiarize the customers with the products
C. to deliver the products directly to the retail stores
D. to send information about the products in quick ways

单选题 From the last paragraph we learn ______.
A. direct advertising is the best way to promote a product
B. companies are trying to find the best way to sell their products
C. advertising is becoming enriched by the research in this area
D. old ways of advertising is giving ways to new ways of doing it