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What would it be like to take a walk on the surface of Mars? If you could design the tallest building in the world, what would it look like? Do you dream of being the next J.K. Rowling? This summer, you can experience all of these things, and more. All you need is an Internet connection and your imagination. A recent study by the Kaiser Family Foundation found that kids spend an average of 1 hour and 29 minutes online each day. Many kids like to use that time to chat with friends, play games or check e­mails. But the next time you get on the Web, try exploring the world instead. “With the Internet, you can go back 11,000 years in time, or go 11,000 kilometers across the planet.” said Russell, Web search expert of Google. “The whole scope of history and the world is open to you.” There is a wealth of information to be found online. For example, if your family is going on vacation somewhere,do a quick online search on the area before you even get in the car. “What's the background of the place; what's the history?” says Russell. “I like to tell my kids, ‘Whenever you have a question, whenever you have a doubt, search it out.’” Ready to launch a virtual journey of your own? Here are a few starting points to get you thinking and to help you on your way. You can invite your parents along for the ride, too. Always ask for permission before downloading programs and software onto your computer. And check with a parent or an adult before visiting a new Web site. Navigate the world in 3­D with Google Earth. Begin in outer space and zoom(快速移动) into the streets of any city, from Hong Kong to San Francisco. Or visit ancient monuments, watch the changing rainforests over time, and dive underwater to explore tropical reef. With the Moon in Google Earth tool, you can walk in Neil Armstrong's famous footsteps. Take a guided tour of the moon's surface with Armstrong's fellow shuttle mate astronaut Buzz Aldrin. When you're exploring that part of the solar system, hop on over to the Red Planet with Google Mars. There, you can move very quickly around the surface and see images from the Mars Rovers. 小题1:The author uses questions in the first passage to ________. A.introduce the topic of the paragraph B.question the possibility of realizing the dream C.attract the readers' attention D.let the readers answer it 小题2:How do you travel around the world in a day according to the passage? A.By taking the time shuttle. B.By making use of the Internet C.By watching 3­D films. D.By finding a tourism company in Google 小题3:Russell thought ________. A.the students spent too much time on the Internet B.the students shouldn't chat and play games online C.the students could solve their problems through the line D.the students should learn knowledge instead of chatting online 小题4:What's the purpose of the passage? A.Encourage the kids to spend more time online. B.Encourage the kids to do some research on science. C.Encourage the kids to learn to use the computer. D.Encourage the kids to explore the world online.
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【多选题】刀尖圆弧不影响()
A.
工件尺寸
B.
少切
C.
过切
D.
形状
【多选题】唯美主义批评的基本主张、理论特色主要有()
A.
文学艺术自律是唯美主义批评的核心理论观点
B.
将文学活动的目的与价值拉回到现世,并以此来建立自己的理论体系,从而使自身呈现出极强的世俗化性质
C.
否认永恒性理论、永恒性美学的存在
D.
将阅读、批评与创作等同,强调作品意义的变动性、生成性
【判断题】( )在切削内孔、外圆或端面时,刀尖圆弧将不影响具体尺寸和形状 不影响具体尺寸和形状
A.
正确
B.
错误
【多选题】新时代习近平解决两岸关系的思想突出强调:四个“坚定不移”是( )
A.
坚定不移坚持“九二共识”、反对“台独”
B.
坚定不移扩大深化两岸交流合作
C.
坚定不移为两岸同胞谋福祉
D.
坚定不移团结两岸同胞共同致力民族复兴
【判断题】刀尖圆弧半径只影响切削效率,不影响被加工表面的粗糙度及加工精度。
A.
正确
B.
错误
【判断题】在切削内孔、外圆或端面时,刀尖圆弧将不影响具体尺寸和形状。
A.
正确
B.
错误
【简答题】冯特认为: 一切科学都研究经验,但心理学研究的是( )经验,而其它科学研究的是间接经验。
【单选题】当不使用G41、G42刀尖圆弧半径补偿时,对( )的尺寸形状没有影响。
A.
圆柱面与端面
B.
凸圆弧与凹圆弧
C.
圆柱面与圆锥面
D.
圆弧面与锥面
【判断题】La famille Graf n'a pas encore rempli son objectif de réduction des déchets.
A.
正确
B.
错误
【单选题】在数控车床上不用刀尖圆弧补偿,对(    )尺寸影响最大。
A.
圆弧面和锥面  
B.
圆弧面    
C.
锥面    
D.
圆弧面和端面
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