• 2022-07-24
    单选题 ( 2.0 分 )
    Which of the following statements is true according to the
    passage?
    A: Nuclear power is a safe and reliable energy source.
    B: solar energy is always available as a source of energy.
    C: Water and steam energy has been successfully used in some
    countries.
    D: The real solution to energy crisis lies in natural sources of
    energy.