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Several studies (i)_____ the assumption that paper cups, because they were made of natural products, were more environmentally (ii)_____ than cups made of plastic (polystyrene). Indeed, these studies indicated that the environmental (iii)_____ of producing and recycling paper cups were similar to, if not more than, those related to the production, disposal, and recycling of polystyrene cups.
- Blank(i)
- corroborated
- exploited
- dispelled
- Blank(ii)
- friendly
- hazardous
- predictable
- Blank(iii)
- benefits
- costs
- opportunities
dispelled , friendly , costs 显示答案
以上解析由 考满分老师提供。
