[单项选择]The End of the Book [A] Amazon, by far the largest bookseller in the country, reported on May 19 that it is now selling more books in its electronic Kindle format than in the old paper-and-ink format. That is remarkable, considering that the Kindle has only been around for four years. E-books now account for 14 percent of all book sales in the country and are increasing far faster than overall book sales. E-book sales are up 146 percent over last year, while hardback sales increased 6 percent and paperbacks decreased 8 percent. [B] Does this spell the doom of the physical book Certainly not immediately, and perhaps not at all. What it does mean is that the book business will go through a transformation in the next decade or so more profound than any it has seen since Gutenberg introduced printing from moveable type in the 1450s. [C] Physical books will surely become much rarer in the marketplace. Mass market paperbacks, which have been declining for years anyway, w

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