Which of the following statements is NOT correct、

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• 1The report says that steps could be taken to reduce about

  A.50% of new cancers．

  B.33％ of new cancers．

  C.12％ of new cancers．

  D.80％ of new cancers．

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• 2Many people leave their hearing problem untreated because

  A.it is not serious．

  B.Crystal Ear is not yet available．

  C.it is not easy to have it treated．

  D.they don’t want to look old．

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• 3According to the passage．hearing loss is

  A.only a minor health problem．

  B.the world’s most common health problem．

  C.merely a teenage disease．

  D.all incurable disease．

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• 4One special feature of Crystal Ear is that

  A.you can control its volume．

  B.you needn’t take it off every d毋．

  C.it is solar、powered。

  D.it saves power．

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• 5Which of the following is NOT true of Crystal Ear、

  A.It is highly sensitive．

  B.It is powerful．

  C.It is invisible．

  D.It is wireless．

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• 6According to Paul Kleihues，Cancer was once regarded as

  A.all incurable disease．

  B.a mysterious disease．

  C.a“Western”disease．

  D.a world disease．

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• 7The risk of dying from cancer in developed countries is

  A.double that in developing countries．

  B.much higher than that in developing countries．

  C.the same as that in developing countries．

  D.much lower than that in developing countries．

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• 8All the following factors may increase cancer rates EXCEPT

  A.occupational carcinogens．

  B.lack of access to tobacco．

  C.unhealthy habits．

  D.aging populations．

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