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【多选题】
虚拟现实技术的特征?A.
沉浸感
B.
交互性
C.
真实性
D.
想象性
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【简答题】1) When did the United States become an industrial nation?
【简答题】When did the United States begin to equip all the cars sold with seat belts according to the American Automobile Association?
【简答题】D “I didn’t think drugs were a big deal.” “My mom started abusing drugs(毒品) when I was in fourth grade, so when a friend offered me weed in sh grade, it didn’t seem wrong to try it. Pot made me f...
【单选题】When did the United States Weather Bureau begin to use box kites?
A.
In 1752.
B.
In 1898.
C.
In 1903.
D.
In 1933.
【简答题】C。 Answer the following questions. a) When did the United States become an industrial nation? b) What could people do by using machines?. c) What did people use for building materials before? d) What ...
【单选题】某种品牌策略可以保证企业的整体信誉不至于受某种商品声誉的影响;便于消费者识别不同的质量、档次的商品;同时也有利于企业的新产品向多个目标市场渗透。当然，促销费用也是不可忽视的。这种品牌策略属于______。
A.
统一品牌
B.
个别品牌
C.
分类品牌
D.
企业名称加个别品牌
【单选题】When did the United States have social security on a national level?
A.
1924
B.
1935
C.
1922
D.
1947
【单选题】But I didn’t feel intimidated by students who spoke faster than I did because I took all the time I needed to think out my ideas and wrote a reply before posting it on the screen . What does the under...
A.
在屏幕上作出回答
B.
将答案粘贴在屏幕上
C.
将答案显示在屏幕上
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