问题详情:设全集U = {1,2,3,4,5,6,7,8},*S = {1,3,5},T = {3,6},则等于A.Φ B.{2,4,7,8} C.{1,3,5,6} D.{2,4,6,8}【回答】B知识点:*与函数的概念题型:选择题