请问机油什?牌子最好用呀?thx? synergy effect can refer to the combination of two or more things working together that creates an effect which is greater than the sum. people always say 1+1=3 , that means synergy combination of company a strengths and company b strengths together . a cost synergy refers to the opportunity of a combined corporate entity to reduce or eliminate expenses associated with running a business. cost synergies are realized by eliminating positions that are viewed as duplicitous within the merged entity. examples include the head quarters office of one of the predecessor companies, certain executives, the human resources department, or other employees of the predecessor companies. this is related to the economic concept of economies of scale. 查看更多