问题
单项选择题
A call market is least likely characterized as a market:（）
A. with bid-ask prices posted by dealers.
B. where buy-sell orders are cleared at a single equilibrium price.
C. with participation by a small number of active investors-traders.
答案
参考答案：A
解析：
[分析] 与连续性市场不同，在间断性市场中，由投资者或交易者报出各自的价格并进行询价，经纪人通常不参与报价一询价。因此，间断性市场不属于经纪人驱动型市场。 [考点] 间断性市场与连续性市场