The burning of rainforests is directly _____ to the so-called gr

The burning of rainforests is directly _____ to the so-called greenhouse effect.
A、contributing
B、attributing
C、constituting
D、associating
【正确答案】：A
【题目解析】：contribute to导致，带来，促成；attribute to把...归因于...；constitute to组成，构成；associate to联想句意：热带雨林的燃烧直接导致了所谓的温室效应。