The three workers from City Wather.com have___.

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• 1This passage is mainly about__.

  A.the increasing security of U.S. companies.

  B.the test of a new security program

  C.a new central monitoring system

  D.Global Positioning Satellite technology

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• 2When scientists describe dolphins’ communicative skills, their tone is rather___.

  A.affirmative

  B.speculative

  C.playful

  D.negative

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• 3A dolphin might be saying “____” when it claps its jaws.

  A.Go back to your home！

  B.Who is playing here!

  C.I am the king here!

  D.Show me who the king is!

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• 4Why is it challenging to interpret “dolphin speak”、

  A.Because dolphins’ language heavily relies on their actions.

  B.Because dolphins like to talk about their language.

  C.Because playing and fighting are part of dolphins’ life.

  D.Because tasty fish are difficult for dolphins to catch.

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• 5Dolphins seem to talk to each other about any of the following EXCEPT___.  

  A.their age

  B.their emotional state

  C.food sources

  D.audio link

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• 6Which of the following is NOT true about the silicon chips in trial、

  A.They are as tiny as a grain of rice.

  B.They will send out radio signals.

  C.They function like identity cards.

  D.They will be developed for medical uses.

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• 7The chips are different from the Global Positioning Satellite technology in that ____.

  A.they are inserted into a person’s body as ID cards

  B.they allow people’s location to be monitored

  C.they provide information to a central monitoring system

  D.they bring more danger to the carriers.

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• 8Many people are worried about the silicon chips because _____.

  A.they are not assured of the effect of the chips.

  B.they cannot get the implanted chips removed

  C.the new laws about the technology might be abused

  D.the new technology may intrude on people’s privacy

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• 9The NBA started using synthetic basketballs instead of leather ones because____.

  A.they wanted every basketball to feel and bounce the same

  B.NBA officials wanted a switch with which to start a reform

  C.they emphasized that synthetic materials are manmade

  D.NBA players had used the leather balls for too long a time

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• 10How did some NBA players respond to the switch to synthetic balls、

  A.They felt much more comfortable with the synthetic balls .

  B.They thought differently about the leather balls.

  C.They felt that the new balls were worse than the leather ones.

  D.They believed the new balls would soon be replaced.

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