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题目内容双击单词支持查询和收藏哦～
According to Dr. Edith Widder, measuring the level of pollutants in sediment provides a more accurate and robust indication of an estuary's health than does measuring the level of chemicals in the water, since pollution in water is (i)_____, but pollution in sediment is (ii)_____
- Blank(i)
- declining
- manageable
- transient
- Blank(ii)
- significant
- persistent
- detectable
transient , persistent 显示答案
以上解析由 考满分老师提供。
