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In the early 1990s, the discovery of a new microbe in wastewater led microbiologists to ______ ammonia's conversion to nitrogen compounds. Called anammox (for anaerobic ammonia oxidation), the microbe was converting into nitrogen gas in the absence of oxygen, a reaction previously assumed to be (ii)______.
- Blank(i)
- question existing dogma about
- abandon efforts to facilitate
- raise health concerns regarding
- Blank(ii)
- hazardous
- irreversible
- impossible
question existing dogma about , impossible 显示答案
以上解析由 考满分老师提供。
