GRE Text Completion: JiJing 1373-GRE填空机经1373题 - XH7PAB5DQE5U0LCDA

Progressive and reactionary populist movements are not necessarily ____________; each may, and usually does, possess features of the other. A. dichotomous B. untenable C. unsustainable D. contradictory E. subversive F. efficacious