以下使用3D软件为虚拟现实建模的注意事项中不正确的是
A. 尽量不要使用复杂动画的设置
B. 尽量避免使用物体子层级元素的动画
C. 尽量不要使用多边形建模技术
D. 尽量不要使用变形动画
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以下属于WebGL技术的优势的是
A. 免去了开发网页专用渲染插件的麻烦
B. 可创建具有复杂3D结构的网站页面
C. 可设计3D网页游戏
D. 可以创建复杂的导航和数据视觉化
三相变压器并联运行的条件是:电压要相等,()必须相同;()相对值要相等。
Read Text A in Unit 4 and identify the main parts that have been mentioned in it.
A. Nature of ADHD
B. Causes of ADHD
C. Advanced medical equipment used to treat ADHD
D. A new study or evidence to classify ADHD as genetic disorder
E. Significance of the new findings about ADHD
F. A new way to diagnose ADHD
Read Text C in Unit 4 and complete the following information about FSHD.(1) DefinitionFSHD is a disease that affects every single person who inherits the .(2) IncidenceFSHD affects about people.(3) SymptomsFSHD may cause in the , around the and in the —people who have the disease cannot smile.(4) Genetic probabilityFSHD is a genetic disease. If a parent has the that causes it, each child has a chance of getting it too. And anyone who inherits the gene is to get the disease.(5) CausesThe dead gene that stuck on the tip of chromosome 4 was repeated fewer than 10 copies got FSHD.