考查细节归纳。由关键词limit the number of distributions 定位至第三段In the past few years, the Massachusetts-based company has imposed limits on the number of its distributors… partly out of necessity. At times the unexpected demand for Reebok's exceeded supply, and the company could barely keep up with orders from the dealers it already had.可知锐步对批发商数量的限制主要是因为需求量出乎意料地超过了供应能力。财政管理体制的核心内容是各级政府间的()。