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18.Sunshine isbeneficial(有益)to plants.

分析 阳光有益于植物.

解答 答案:beneficial.
分享句子结构可知,本句考查短语be beneficial to sth对…有好处,相当于be of benefit to sth;故答案为beneficial.

点评 翻译填空题考查的是词汇的记忆和运用能力,平时要注意积累和运用.

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