单选

What did the Duke researchers' study of the British twins find?

  • A.Single parents in financial difficulties are likely to behave impulsively.
  • B.Kids1 problems may result from their intelligence and socioeconomic status.
  • C.Less self-control in childhood may bring about negative results later in life.
  • D.Twins tend to share the same level of self-control even those with different character.
参考答案
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