A lot of research and studies have shown that Trench oil, taken out from kitchen waste, the increase of cancers.
A. results from
B. attends to
C. contributes to
D. devotes to
网友回答
A. results from
B. attends to
(答案→)C. contributes to
D. devotes to
解析：短语辨析。A由于；B关心;照料;护理；C导致，做贡献；D致力于；结合句意可知C正确。句意：很多研究已经说明从厨房废料中提炼出的地沟油导致越来越多的癌症。