【名词&注释】
交互作用(interaction)、虚拟社区(virtual community)、虚拟现实(virtual reality)、股份公司(stock company)、学历教育(diploma education)、情节严重(gravity of the circumstances)、税收法规(taxation laws and regulations)、中国证监会(china securities regulatory commission)、继续发展(continue to develop)、发行股票
[单选题]VRML is a(1)for 3D multimedia and shared virtual worlds on the WWW. In comparison to HTML, VRML adds the next level of interaction, structured graphics, and extra(2)(z and time) to the presentation of documents. The applications of VRML are(3),ranging from simple business graphics to entertaining WWW page graphics, manufacturing, scientific, entertainment, and educational applications, and 3D shared virtual worlds and communities. X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards(4)with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different(5),from high-end visualizations to lightweight applications.
A. A