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【单选题】
Questions 21-23 (Suggested completion time: 7 minutes) Directions: Read the text about virtual reality and augmented reality, and answer the questions according to the information in the text. Virtual Reality vs. Augmented Reality One of the biggest confusions in the world of augmented reality is the difference between augmented reality and virtual reality. Both are earning a lot of media attention and are promising tremendous growth. Virtual reality (VR) is an artificial, computer-generated simulation or recreation of a real-life environment or situation. It immerses the user by making them feel they are experiencing the simulated reality firsthand, primarily by stimulating their vision and hearing. Augmented reality (AR) is a technology that layers computer-generated enhancements atop an existing reality in order to make it more meaningful through the ability to interact with it. AR is developed into apps and used on mobile devices to blend digital components into the real world in such a way that they enhance one another, but can also be told apart easily. Augmented reality and virtual reality are similar in that both are inverse reflections of one in another with what each technology seeks to accomplish and deliver for the user. Virtual reality offers a digital recreation of a real-life setting, while augmented reality delivers virtual elements as an overlay to the real world. Both leverage some of the same types of technology, and they each exist to serve the user with an enhanced or enriched experience. However, the two also differ from each other in various ways. Augmented reality enhances experiences by adding virtual components such as digital images, graphics, or sensations as a new layer of interaction with the real world. It is being used more and more in mobile devices such as laptops, smart phones, and tablets to change how the real world and digital images, graphics intersect and interact. Contrastingly, virtual reality creates its own reality that is completely computer generated and driven. It is usually delivered to the user through a head-mounted or hand-held controller. This equipment connects people to the virtual reality, and allows them to control and navigate their actions in an environment meant to simulate the real world. 21-23. Which THREE of the following statements can be inferred from the text?
A.
Augmented reality shows virtual elements on top of the real world, while virtual reality recreates real-life situations in a digital way.
B.
A virtual reality dressing room may allow shoppers to virtually try on their purchases quickly and easily without really having to put them on.
C.
Virtual reality is able to transpose us by taking us to some other place, while augmented reality, in contrast, never moves us elsewhere.
D.
With augmented reality, you can swim with sharks , and with virtual reality, you can watch a shark pop out of your business card .
E.
Both augmented and virtual realities utilize some of the same types of technology and offer people enriched experiences .
F.
Augmented reality will enable an immobile patient to go out of the room and enjoy his/her favorite sights, sounds and smells in the country.
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【多选题】下列有关剖视图的概念描述正确的是:
A.
剖视是假想剖切,并没有把机件真正的剖开。
B.
剖视一般分为全剖,半剖,阶梯剖。
C.
半剖视图一般用于具有对称结构的机件。
D.
在剖视图的标注中,剖切符号用来表示剖视图投射的方向
【判断题】各个孤立力学系统的拉格朗日函数可以乘以不同的任意常数
A.
正确
B.
错误
【多选题】产生测量误差的原因有( )。
A.
地形原因
B.
人的原因
C.
测量方法
D.
仪器的原因
E.
环境的原因
【单选题】(2019 ·海南卷,9)20世纪二三十年代,大量返乡闽南籍海外移民在厦门鼓浪屿兴建了一批融西式风格与地方传统于体的近代建筑,类似建筑也存在于漳州、泉州等地,逐渐形成了建筑上的特殊风格。这可以用来说明
A.
西方文化影响遍及中国乡村
B.
中西建筑文化的融合创新
C.
中国建筑风格受到西方冲击
D.
西式建筑仅见于通商口岸
【判断题】“百家争鸣”是我国先秦时期思想文化繁荣的一个重要标志。
A.
正确
B.
错误
【多选题】产生测量误差的原因有( )。
A.
人的原因
B.
仪器原因
C.
外界条件原因
D.
以上都不是
【判断题】电话机、电视摄像机属于模拟信源,输出的是模拟信号。
A.
正确
B.
错误
【简答题】什么叫测量误差?产生测量误差的原因有哪些?
【单选题】厦门集美的学村有一批“穿西装、戴斗笠”的楼房,传统闽南风味的燕尾脊、红砖墙与西洋风格的高石柱、花窗套融为一体。欣赏着这些优美的建筑,让人感悟到()
A.
文化创新离不开文化的继承和借鉴
B.
传统建筑是民族文明程度的重要标志
C.
优秀文化是不同民族文化融合的结果
D.
中华文化具有鲜明的民族性和相对的稳定性
【简答题】产生测量误差的原因有?
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