TOEFL Listening: ETS-TOEFL听力机经 - 4G183JD93K94VJJTP$

What is the professor's opinion about the research findings? A. The findings provided valuable insights for a research study he conducted. B. The findings support a different conclusion than the one the researchers have drawn. C. The findings will have an impact on other fields of research. D. The findings are not conclusive because the movement of pollutants was not tracked.