势是一种险峻的作战态势，是在特定时空中相对于敌方的综合优势，是在局限条件下即现有客观条件基础上积极运作，是将帅指挥能力的集中体现，有利的态势可以极大地激发部队的士气和将士的斗志。()
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总统制中央行政制度是由总统担任国家元首和政府首脑的一种行政制度。()
A firm operating in an industry characterized by monopolistic competition will least likely:
A. earn positive economic profits in the short run.
B. maximize economic profits by colluding with the other firms and operating as a single seller.
C. differentiate its product based on price or quality.
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