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第 23 题 It can be inferred from the fourth paragraph that solar power __(  )

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第 40 题 The tone of the text c

  • an
  • be best des
  • cribe
  • d as(  )    [A] confident and optimistic    [B] scientific and detached    [C] discouraged and alarmed    [D] polite and sensitive

第 38 题

  • According to the text, family sta
  • bility depends on ________.(  )    [A] the
  • coupies' earning ability    [B] a network of social an
  • d legal support    [C] how much possessions the couple have before marriage    [D] the relative balance between the benefits and costs of marriage
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