GRE Text Completion: ETS Fundamental-GRE填空ETS基础 - YF4UTQ419A5LE50DX

In order to (i)____________ her theory that the reactions are (ii)____________, the scientist conducted many experiments, all of which showed that the heat of the first reaction is more than twice that of the second. A. comprehend B. different C. capture D. constant E. support F. problematic