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  3. The only solution to rubbish problem for a nation which now spends more on wrapp

The only solution to rubbish problem for a nation which now spends more on wrapp

游客2025-03-19  30
问题 The only solution to rubbish problem for a nation which now spends more on wrapping food than it pays farmers to produce it, is recovering______the packaging materials for commercial as well as for conservation reasons.
选项 A、on sale’
B、on the spot
C、on a large scale
D、on all sides
答案 C
解析 on a large scale“大规模地”；on sale“出售”；on the spot“当场；在现场”，用在句中语义不明确；on all sides“四面八方”，也不合适。
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