다음 글의 내용과 일치하는 것은? The medical library of a hospital is a special library. So are the libraries of a law office, a weather bureau, a labor union, a museum, an arboretum, or an encyclopedia publishing firm. A special library is part of a hospital, business, or other organization, and it offers practical information to the workers or members. Such a library is not generally open to the public. Usually it concentrates on a particular subject ― medicine, law, climate and weather, labor, or art. A special library may have few books, relying heavily instead on such materials as magazines, reports, and computer printouts. These enable the library to keep up in fast-moving fields including aerospace and bio-technology.