What will happen if you sit in the chair for too long、

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• 1The Water Talky was invented by     .

  A.German scientists

  B.a young child

  C.a UK company

  D.some swimmers

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• 2The new light bulb     .

  A.is brighter than the old o nes

  B.isn’t good for the environment

  C.can last at least 25 years

  D.can last less than 25 years

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• 3— Many thanks for what you’ve done for us.—     .

  A.Don’t mention it

  B.Never mind

  C.That’s right

  D.You seem to have a point

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• 4— Do you know      in ancient China、— I have no ide

  A.But I know people once used tree leaves to make paper.A.how paper was made

  B.how was paper made

  C.what paper was made

  D.what was paper made

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• 5— Was table tennis invented by the Chinese、— No. It      in China until the start of the 20th century.

  A.played

  B.was played

  C.didn’t play

  D.wasn’t played

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• 6We don’t know the price of the self-driving car because     .

  A.it is on sale only in America

  B.it isn’t made for sale 、、、、、、、、、、、、、、、、、、、、、、、

  C.people can get it for free

  D.it hasn’t been on sale to the public

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• 7The self-driving car can collect information using     .①video cameras     ②a computer③a LIDAR sensor     ④a computer system

  A.①②

  B.①③

  C.①②③

  D.①②③④

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• 8According to CNN, self-driving cars will     .

  A.send us more quickly to the workplace

  B.lead to heavier traffic

  C.improve traffic condition in big cities

  D.carry more people than a normal car

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• 9How many lions died during the last decade、

  A.About 2,000.

  B.About 8,000.

  C.About 10,000.

  D.About 1,200.

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• 10Richard wanted to make an automated flashlight because     .

  A.he wanted to became famous

  B.he had lots of broken flashlights

  C.h e found lions were afraid of humans and flashlights

  D.he wan ted to make the night as bright as the day

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