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DOT相比ETH的1CO，团队众筹拿到ETH后跑路不干活，DOT的平行链插槽拍卖成功项目通过合约方式锁定DOT，让项目方不能直接拿到DOT，只有平行链使用权！到期后归还DOT，哪怕你选着不好项目，起码还可以拿回DOT，并没有任何损失。