• 2022-06-06
    What can we infer from the text
    A: It is easy to prolong the average life span in developed country, because of the advanced health science.
    B: It is difficult to prolong the average life span greatly, because science cannot prevent the aging process now.
    C: If the diseases that cause most of the death can be cured, the average life span will increase greatly.
    D: More and more people will live past 100 if the diseases that cause most of the death can be cured.