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  3. 共用题干 第三篇Global Cancer Rates to Rise by

共用题干 第三篇Global Cancer Rates to Rise by

最全题库2022-08-02  6
问题 共用题干第三篇

Global Cancer Rates to Rise by 50% by 2020

The number of new cancer cases worldwide is expected to increase by 50%by the year
2020.But a new report suggests that as many as a third of new cancers could be avoided
by adopting healthier lifestyles and through public health action.
The World Cancer Report,released by the International Agency for Research on
Cancer,shows that cancer has now emerged as a major public health threat in developing
countries as well as rich ones.
Overall,cancer was responsible for 12%of all deaths in 2000.But in many countries
more than a quarter of all deaths are caused by cancer.
The report shows that 1 0 million new cancers were diagnosed globally in 2000,and that
number is expected to rise to 15 million by 2020.Researchers say most of that increase will
mainly be due to steadily aging populations in both developed and developing countries and
current trends in smoking and other unhealthy habits.
"Cancer has emerged as a major public health problem in developing countries for the
first time, matching its effect in industrialized（工业化的）countries , " said researcher Paul
Kleihues,MD,director of IARC,in a news release."Once considered a'Western'
disease,the Report highlights that more than 50 percent of the world's cancer burden,in
terms of both numbers of cases and deaths,already occurs in developing countries."
The risk of being diagnosed with cancer in developed countries is double that in less-
developed ones.However,the risk of dying from cancer is much higher in developing
countries , where 80% of cancer patients already have late-stage incurable tumors（肿瘤）
at the time of diagnosis.
Researchers say cancer rates have traditionally been higher in developed countries due
to greater exposure to tobacco,occupational carcinogens（致癌物）,and an unhealthy
Western diet and lifestyle.As less-developed countries become industrialized and more
prosperous,they tend to adopt the high-fat diet and low physical activity levels typically seen
in the West,which increase cancer rates.All the following factors may increase cancer rates EXCEPTA:occupational carcinogens.        B:lack of access to tobacco.C:unhealthy habits.        D:aging populations.
选项 All the following factors may increase cancer rates EXCEPT
A:occupational carcinogens.       
B:lack of access to tobacco.
C:unhealthy habits.       
D:aging populations.
答案 B
解析
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