• 2022-06-06
    To facilitate the recycling of packaging materials, the different material in a package should be made for easy disassemble
  • 内容

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      For the same component, it should be made from as more types of materials as possible

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      From the attribute of materials, which two kinds of vernacular materials are classified ( )? A: Vernacular natural material B: Vernacular artificial materials C: Local materials D: Adaptable material E: Ecological materials

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      34. Eliminated packaging material from the market and lowered their packaging costs is not a good way to protect environment.

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      When designing the packaging, you should concern about ______. A: the number of items to be put in a package B: the taboo of a certain culture C: the size and the color D: all of the above

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      It’s a ________ decision for students to make whether they should cheat or not. A: rough B: tough C: easy D: different