概括句意

An important thing to remember about cut flowers is that they are sensitive to temperature. For example,studies have shown that cut carnations（康乃馨）retain their freshness eight times longer when kept at 12℃ than when kept at 26℃.Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.

The main idea of this paragraph is__________.

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6-12岁英语高频重点词汇，搞定小学英语全段考试

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A.Control of Respiration

B.How to make Cut Flowers

C.Ways of Stopping Respiration

D.Most Important Aspect of Flower Care

正确答案：D

答案解析：本段文字最后一句为段落中心句，所以不难选出答案为D，借用了段中的词most important aspect of flower care.

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