例句與造句

1. Research on the subject began with Nelson and Plosser whose paper on GNP and other output aggregates failed to reject the unit root hypothesis for these series.
2. While the literature on the unit root hypothesis may consist of arcane debate on statistical methods, the hypothesis carries significant practical implications for economic forecasts and policies.
3. It's difficult to find unit root hypothesis in a sentence. 用unit root hypothesis造句挺難的