GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - 1I5005P67374S57GJ

The passage suggests that as temperatures rise, trees in the tropical regions A. continue to grow at a slow but steady rate B. grow less and intensify photosynthesis C. emit more CO2 and oxygen D. increase overall respiration and decrease overall photosynthesis E. grow more and absorb more CO2