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问题:

Which of the following is true about Ian Bond’s me

选项

  • The capsules he uses are more difficult to make than hollow fibres.

  • He uses carbon fibres rather than glass fibres in his composite materials.

  • He has added capsules into the fibres themselves instead of the healing molecules.

  • A crack in the material breaks the fibres to release the ingredients to fix the crack.

  • 答案:

    D