第七章单元测试
  1. The first step for solid waste treatment is( )。

  2. A:incineration B:Composting C:landfill D:separation
    答案:separation
  3. Battery is hazardous solid waste.( )

  4. A:错 B:对
  5. papers are recyclable solid wastes.( )

  6. A:对 B:错
  7. Municipal solid waste (MSW) are produced directly from homes.( )

  8. A:对 B:错
  9. landfill may cause groundwater pollution.( )

  10. A:对 B:错

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