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问题 单项选择题

商品化会计核算软件开发经销单位在售出软件后应承担售后服务工作，在下列工作中， ( )不是软件开发销售商必须提供的。

A．对用户进行软件使用前的培训

B．对用户的软件进行维护

C．对用户的硬件进行维护

D．对用户的软件版本进行更新

答案

参考答案：C

单项选择题 A3型题

性病是指通过性行为或类似性行为传播的一组传染性疾病。性传播疾病是可以预防的。

开展热线咨询，向大众发放宣传性病预防资料；尤其是注意向有高危行为的人普及性病的可疑症状宣传是（）

A.二级预防

B.三级预防

C.中期预防

D.大众预防

E.原级预防
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单项选择题

VRML is a (71) 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 (72) (z and time) to the presentation of documents. The applications of VRML are (73) , 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 (74) with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different (75) , from high-end visualizations to lightweight applications.

A．link

B．format

C．structure

D．procedure
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