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Known as the Fifth Invention of Ancient China,the Chinese abacus helped people solve all
kinds of math problems in ancient China and is still used today.Some primary schools in China
have opened abacus classes.People find that using an abacus can also improve thinking and
practical abilities.In 2013,the Chinese abacus was officially listed as an intangible cultural
heritage of human beings(人类非物质文化遗产)，
"The abacus becomes a playing tool for younger children.It feels like a game.I think the
success comes because children can touch and feel an abacus and picture it in their mind."said
Dr.Mantri.
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29.What does the underlined word"employing"in Paragraph 2 probably mean
A.Counting.
B.Using.C.Leamning.D.Changing.)
30.What do Paragraphs 1-3 tell us (
A.Where the abacus was taught as a game.
B.When the abacus became popular at school.
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C.How Dr.Mantri used the abacus to helped hos son with maths.
D.How the abacus became the Fifth Invention of Ancient China.
31.What does the word "progress"in Paragraph 3 refer to
A.Dhruv improved his math quickly.
B.Parents were interested in the abacus.
C.Teachers got better teaching methods.D.Children's thinking became active.
32.What is the best title for the passage
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A.The Difficulties of Learning Maths
B.The Importance of Improving Abilities
C.The sale of the Chinese Abacus abroad D.The Magic of the Chinese Abacus
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One morning at Taishan Mountain in Shandong,a four-legged robot was climbing the
challenging "Eighteen Bends".It had a box on its back and was going up the 1,460-meter-long
and 45-degree-inclined (path.While people were tired and out of breath,this clever
robot moved easily around the crowds,kept its balance,and carried a 120 kg bag.
Used by a company under the local tourism group,this AI robot helps clean up tourist waste
and carry things in the tourist attraction.With8 million visitors every year,Taishan has 24,000
tons of waste.Cleaning it by hand is expensive and dangerous.A company worker said,"The
robot can climb mountains and cross water while carrying things.It makes the work much easier
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Over the past few years,there has been a growing number of AI robots.In the robot market,
human-like robots sell well,and they are getting more and more popular.Scientists say the
market will grow a lot,By 2025,the sales of China's human-like robots have reached 5.3 billion
yuan.By 2029,it could be 75 billion yuan,which would be 32.7%of the world's sales.The
govemment is helping a lot.These robots are no longer just for fun but are becoming practical.
Cities like Chongqing and Shenzhen are spending money on projects about AI that can interact
(互动)with the real world.
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AI robots are helping people in many ways.In Chongqing,a 70-year-old person who had a
stroke (could move again with the help of a wearable AI robot.His doctor said,"These
robots can find out what people want to do by looking at how their joints()move.They are
changing how we help the old and disabled get better."
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AI robots are also reshaping the idea of toys and pets.For example,Sirius is a small robot
dog.It can dance,follow orders and move like a real dog.It's very popular because it can
interact with people.The small,smart,four-legged robot can even understand and answer
people's0 rders.2ofm电，tgsd,2 bdmdo月ni amo biog brbnun vi aw由aad
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