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单选

解除死锁的常用方法是回滚一个或多个事务。在选择要回滚的事务时,不属于要考虑的情况是(36)。

  • A.选择使回滚代价最小的事务作为牺牲者
  • B.决定回滚多远
  • C.避免饿死
  • D.提供解除死锁的策略
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