()are used widely in the operation of warehouse and distribution center andform the basic handling device for a number of selection system.

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()are used widely in the operation of warehouse and distribution center andform the basic handling device for a number of selection system.

  • A: Cranes
  • B: Conveyors
  • C: Forklifttruck
  • D: Pallets

请帮忙给出正确答案和分析,谢谢!