Last week, Pew Internet Project released a survey about the use of e­books by library customers.It found that 12% of Americans aged 16 and older who read e­books say they had borrowed at least one from a library within the past year.But the survey found that the broader public, including 58% of those who have library cards and 53% of people who own electronic book readers, are not aware that they can find and check out e­books from public libraries, even though three quarters of the libraries offer that service.

　　Pew Internet Project director Lee Rainie noted that e­book borrowing is becoming more popular at the same time that publishers, who are selling plenty of e­books and fewer hard­copy editions, are worried that free e­book check­outs at the library will hurt sales.In February, for example, the big publisher Penguin Books stopped supplying new e­books and audio books to libraries.Penguin just reached an agreement to resume supplying one big library system in New York City but not until six months after new titles are released.That way, those who want the latest books will have to buy them.

　　So things are a little murky (阴暗的) in the library world when it comes to electronic books.More and more customers want them, 语篇解读：如今电子书走进了美国的许多地方图书馆人们可以从图书馆里借阅。9．What is the function of the two questions in the first paragraph?

　　A．To introduce the topic of the passage.

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