Research suggests that fast food and soft drink directly to childhood obesity.
A. appear
B. contribute
C. adjust
D. respond
网友回答
A. appear
(答案→)B. contribute
C. adjust
D. respond
解析：考查动词辨析。句意：研究表明，快餐和软饮料直接导致儿童肥胖。appear出现，似乎；contribute to有助于，导致；adjust to调整，使适应；respond to回应。故选B。