It is hard to 填空 1 the reality and fantasy with head-mounted displays for the virtual training.2. The course is designed to 填空 2 students for a career in AI research and development.3. Many museums apply digital technologies to increase interactive activities and 填空 3 the attention of visitors.4. The policeman had no clues about the case and had to 填空 4 for the relevant information online.5. The advertising campaign intentionally 填空 5 consumers about whether the product was natural.6. It goes without saying that online study can 填空 6 learners with much more information and knowledge.

VRML（Virtual Reality Modeling Language）即虚拟现实建模语言。是一种用于建立真实世界的场景模型或人们虚构的三维世界的场景建模语言，也具有平台无关性。是目前Internet上基于 WWW的三维互动网站制作的主流语言。简述VRML(Virtual Reality Modeling Language)定义及功能。

The cheerful guy who wore virtual reality glasses_into the virtual world.A. plun

[判断题] 虚拟现实（virtual reality，VR）或称虚拟环境（virtual environment，VE）是由计算机生成的、具有临场感觉的环境，它是一种全新的人机交互系统。A . 正确B . 错误

[问答题]虚拟现实VR (Virtual Reality）/人工现实或灵境技术

[单选题]He built the team through both hard training and _____discipline.A.looseB.p

[单选题]These veterans still remember the rigorous discipline and hard training in

Both teams were in hard training; ______ was willing to lose the game.A. eitherB

[单选题]_________ the right kind of training , these teenage soccer players may one day grew the international stars.A． GivingB． Having givenC． To giveD． Given

[试题]填空：（1）温度由 t℃下降 2℃后是____℃；（2）今年李华m岁，去年李华____岁，5年后李华____岁；（3）a个人n天完成一项工作，那么平均每人每天的工作量为____；（4）某商店上月收入为a 元，本月的收入比上月的2倍还多10元，本月的收入是____元；（5）明明用 t s走了s m，他的速度为____m/s；（6）如果正方体的棱长是a-1，那么正方体的体积是____，表面积是____。

8 填空若beta=(1,2,t)^T可由向量组alpha_(1)=(2,1,1)^T,alpha_(2)=(-1,2,7)^T,alpha_(3)=(1,-1