GRE Text Completion: Fundamental 24 Sets-GRE填空基础24套 - CZSR412HP3VY56B5!

In 1916 Yellowstone National Park had only 25 bison, but the population has since ____________ to more than 2,000 A. ballooned B. mediated C. dispersed D. burgeoned E. reconciled F. attenuated