A. the relationship between supply and demand B. the possible results of government controls C. the necessity of government control D. the urgency of getting rid of government controls 参考答案:B 答案解析:主旨题 本文从rent control和最低工资控制两方面讨论了政府控制可能造成的后果。进一步说,许多政府行为可能保护某些利益,但从长远看,也会带来许多问题。B项正确。A项说:(文章叙述了)供需关系