A. by keeping its original shape and color B. in the life of the cut flower C. tO produce carbon dioxide D. for as l

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问题     A. by keeping its original shape and color
    B. in the life of the cut flower
    C. tO produce carbon dioxide
    D. for as long as possible
    E. by controlling temperature
    F. to replace the water and solution every day
The aging of cut flowers can be slowed down ______.

选项

答案E

解析 文章第4段提到:“通过保持低的温度,呼吸减少,切花的成长时间放慢。”因此,本题通过控制温度能够放慢切花成长的时间。
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