Among the more effective kinds of publicity that publishers can get for a new book is to have excerpt of it published in a high--circulation magazine soon befor the book is published . The benefits of such excerption include not only a sure increasein sales but also s fee paid by the magazine to the book's publisher.
which of the following conclusion is best supported by the information above?
A The number of people for whom seeing an experpt of a book in a magazine provides an adequate substitute for reading the whole book is smaller than the number for whom the experpt stimulates a desire to read the book.
B Because the financial advantage of experpting a new book in a magazine usually accrues to the book's publisher, magszine editor are unwilling to publish excerpts from new books.
C In caculating the total number of copies that a book has sold, publishers include sales of copies of magazins that featured an experpt of the book.
D The effectiveness of having experpt of a book published in a magazine, measured in terms of increased sales of books, is proportional to the circulation to the magazine in which the excerpts are published.
E Books that are suitable for excerpting in high--circulation magazines sell more copies than books that are not suitable for excerpting.
正确答案是A
我不知道A为什么对，D为什么错。
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