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发布时间: 1970-01-01

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1最佳选择题 3分

Therewasonethoughtthatairpollutionaffectedonlyt

  • A. cause widespread damage in the countryside
  • B. affected the entire eastern half of the United States
  • C. had damaged effect on health
  • D. existed merely in urban and industries areas
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正确答案: -

本题解析: 暂无解析

2最佳选择题 3分

Therewasonethoughtthatairpollutionaffectedonlyt

  • A. share the same view with the scientist.
  • B. is uncertain of its occurrence
  • C. rejects it as being ungrounded
  • D. thinks that it will destroy the world soon
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正确答案: -

本题解析: 暂无解析

3最佳选择题 3分

Therewasonethoughtthatairpollutionaffectedonlyt

  • A. raising the world’s temperature only a few degrees would not do much harm to life on earth.
  • B. lowering the world’s temperature merely a few degrees would lead major fanning areas to disaster.
  • C. almost no temperature variations have occurred over the past decade.
  • D. the world’s temperature will remain constant in the years to come.
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正确答案: -

本题解析: 暂无解析

4最佳选择题 3分

Therewasonethoughtthatairpollutionaffectedonlyt

  • A. the greenhouse effect
  • B. the burning of fossil fuels
  • C. the potential effect of air pollution
  • D. the likelihood of a new ice age
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正确答案: -

本题解析: 暂无解析

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