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Only with the discovery of an ozone hole over Antarctica in 1985 did chemical companies finally relinquish their opposition to a ban on chlorofluorocarbons (CFCs), which destroy ozone. The discovery suggested that strong political action to halt production of CFCs might be (i)_____, and fortunately, the chemical industry no longer felt compelled to oppose such action: although companies had recently (ii)_____their research into CFC substitutes, studies they had initiated years earlier had produced (iii)_____results.
- Blank(i)
- imminent
- imprudent
- premature
- Blank(ii)
- corroborated
- publicized
- curtailed
- Blank(iii)
- encouraging
- inconclusive
- unsurprising
imminent , curtailed , encouraging 显示答案
以上解析由 考满分老师提供。
