The main purpose of public libraries is to provide books and they should not waste their limited resources and space on providing expensive hi-tech media such as computer software, videos and DVDs.

针对这样一个题目，通过审题，题目要求考生探讨图书是否需要提供高科技媒体。

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Through the use of custom animation software and motion capture libraries created by the artists, the work's computer-generated world looks like a moving hand-drawn illustration.

ENGADGET: Museum of The Moving Image plans multi-million dollar updates with HD, 3D