VRML is a（1）for 3D multimedia and shared virtual worlds on

【名词&注释】

交互作用(interaction)、日常生活(daily life)、虚拟社区(virtual community)、虚拟现实(virtual reality)、娱乐性(entertainment)、轴功率(shaft power)、结核性腹膜炎(tuberculous peritonitis)、密切接触(close contacts)、继续发展(continue to develop)、凡士林油纱

[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. B

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学习资料：

[单选题]克罗恩病最常见的并发症是（）.

A. 肠瘘
B. 肠出血
C. 肠梗阻
D. 腹腔脓肿
E. 中毒性结肠扩张

[单选题]选择电机时主要根据泵的（）初步确定。

A. 材质
B. 轴功率
C. 出口管径
D. 输送介质

[单选题]流脑主要传播途径是（）

A. 空气传播
B. 经水传播
C. 经食物传播
D. 日常生活间接接触传播
E. 密切接触^{(close contacts)}直接传播

[单选题]关于包扎疗法不恰当的是（）

A. 外层用无菌脱脂纱布或棉垫包扎
B. 清创后内层敷料为1～2层凡士林油纱贴于创面
C. 厚度以渗出物不渗湿外层敷料为度
D. 包扎应从远端开始
E. 四肢关节包扎应固定在中立位

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