The word “this” in Paragraph 6 refers to_______

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• 1Why is a button needed、

  A.To minimize the cost of EyeDrop.

  B.To choose as many objects as possible.

  C.To make EyeDrop different from others.

  D.To select what we want.

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• 2The eye-tracker technology enables usto______

  A.change our computer screen.

  B.focus on anything that interests us.

  C.get a smartphone connected wirelessly.

  D.move an object from screen with a glanc

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• 3What is the author’s tone toward the Northern Lights、

  A.Indifferent

  B.Sarcastic

  C.Sharp

  D.Appreciative

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• 4Which of the following statements is trueof the Northern Lights、

  A.Their movement is slow enough to be observedwith the eyes.

  B.People cannot see them unless traveling toAlaska or Canada

  C.They are very close to the groun

  D.D.They are very long and thick.

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• 5The Northern Lights are createdwhen______

  A.atomic particles fall to the Earth and collidewith atmospheric gases.

  B.the magnetic field lines fail toreconnect.

  C.the electrons falling to the Earth shinein different colors.

  D.oxygen and nitrogen are separated from theatmospheric gases.

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• 6Which of the following statement is trueof eye-trackers for consumer devices.

  A.They are costly.

  B.They are available.

  C.They are installed in Google Glassheadset.

  D.They are expected to come out soon.

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• 7What is Turner likely to study next、

  A.How to drag and drop with gaze and taps.

  B.How to present the system in publi

  C.C.How to get touch screen involve

  D.D.How to cut and paste content from a publicdisplay.

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• 8All of the following factors relating tocancer risk were mentioned in the passage EXCEPT________

  A.breathing exercise

  B.regular walking

  C.recreational activity

  D.lifestyle choices

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• 9It can be inferred from Dr. Alpa Patel’s study that____.

  A.women have fewer chances of physicalactivity

  B.daily walking could cut the chance of breastcancer

  C.leisure-time activity is not associatedwith cancer risk

  D.walking is not recommended for women withbreast cancer

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• 10Dr. Alpa Patel was_____.

  A.head of the survey study

  B.chief editor of Cancer Epidemiology

  C.chair of the American Cancer Society

  D.chief executive of Breast Cancer Campaign

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