下列选项中,不正确的是( )
A. 结构破坏分延性破坏和脆性破坏
B. 结构要尽量避免发生脆性破坏
C. 延性破坏破坏前会有前兆
D. 脆性破坏破坏前有明显变形
下列选项中,不正确的是( )
A. 力学可粗分为静力学、运动学和动力学
B. 静力学主要研究力的平衡或物体的静止问题
C. 运动学主要研究物体运动和所受力的关系
D. 力学是工程结构设计的基础
which is correct about the VR Broadcasting? ()
A. VR shooting- splicing and composition- transmission- output
B. splicing and composition- VR shooting- output- transmission
C. VR shooting-transmission- splicing and composition- output
D. VR shooting- splicing and composition- output -transmission
What are the 3I features of VR technology?( )
A. imagination
B. creativity
C. interactivity
D. immersion