阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
World Book Day, also known as World Book and Copyright Day, is a yearly event organized by the UNESCO to encourage reading, publishing and copyright. The first world Book Day was celebrated on April 23 in 1995. As this year's day for knowledge is coming, let's take a look at the world's attractive libraries and enjoy their beauty.
Library of Alexandria
The Alexandria Library in Alexandria, Egypt, was one of the largest and most important libraries of the ancient world. The library, destroyed in 415 AD and rebuilt in 2002, is not only a library, but also a museum and scientific research institution （机构）.It is known as the Egyptian cultural center and a lighthouse of thought, culture and science.
National Library of Indonesia
The Indonesian National Library, located in Jakarta, the capital of Indonesia, has the most complete collection of publications in the country, recording the history, culture and information of Indonesia in various times. Manuscripts （手稿）written on leaves, bamboos and Indonesian native paper arc some of the rare （罕有的）items kept in the collection.
Vasconcelos Library
Vasconcelos Library is located in the downtown area of Mexico City. It was designed by the famous Mexican architect Alberto Kalach, and named after Jose Vasconcelos, the philosopher and former president of the National Library of Mexico. It was completed in May 2006 and opened to the public.
Mazarin Library
Mazarin Library is located within the Institute of France, on the left bank of Seine in Paris. Created in the 17th century, it has one of the richest collections of rare books and manuscripts in modem France, and is the oldest public library in the country.
21. Which of the following keep manuscripts as collections according to the text?
A. Vasconcelos Library and Mazarin Library. B. Library of Alexandria and Mazarin Library.
C. National Library of Indonesia and Mazarin Library.D . National Library of Indonesia and Vasconcelos Library.
22. What can we learn about the libraries?
A. Library of Alexandria is the biggest in Egypt.
B. National Library of Indonesia is also a cultural center.
C. Vasconcelos Library was named after its designer.
D. The most ancient public library of France lies in Paris.
23. What is the purpose of the text?
A . To report World Book Day. B. To suggest traveling abroad.
C. To share various collections of books. D. To introduce some wonderful libraries.
