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。()
查看答案
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.
中世纪初期，西欧各国君主的权力有限，行政机构简单。()
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