Why do children easily be affected by radiation、

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• 1According to Ms Davis, brain cancer increase      .

  A.among children

  B.among old people

  C.in the twenties

  D.among pregnant women

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• 2Why is the warning in the small print、

  A.They don’t want the users to pay attention to it.

  B.There is not enough space for the warning.

  C.They think people will not care about it.

  D.The warning is not important at all.

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• 3According to the last paragraph, which of the following is Not True、

  A.Wealth can produce wealth.

  B.We should suffer from civil and external wars.

  C.We should have more skilled people to use the natural resources.

  D.We should have sound and stable politics and be free from foreign invasion.

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• 4What does the underlined word “her” in Paragraph 3 refer to、

  A.The Sahara Desert.

  B.An old country.

  C.China.

  D.The USA.

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• 5The main idea of the second paragraph is that______.

  A.the Sahara Desert is a very poor region

  B.a country’s wealth depends on many factors

  C.the USA is one of the wealthiest countries in the world

  D.natural resources are an important factor in the wealth or poverty of a country

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• 6What can we conclude from the last paragraph、

  A.Pregnant women should keep cell phones away.

  B.People should use cell phones in the correct way.

  C.If you are a child, you’d better text than make phone calls.

  D.When you use a cell phone, use a wired headset or the phone’s speaker.

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• 7What does the passage mainly talk about、

  A.Be careful when using cell phones.

  B.Don’t hold your cell phone against your ear.

  C.Rats exposed to radiation have damaged DNA in their brains.

  D.Low-energy radiation could damage cells that could lead to cancer.

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