问题
单项选择题
An analyst does research about tradingsessions. Which of the following statements is most accurate to describe the characteristics of a call market（）
A. Dealers who provide securities liquidity engage in proprietary trading.
B. Gathering all trades to the same place at the same time makes it easier for buyers to find sellers and vice versa.
C. A willing buyer and seller can trade at anytime the market is open.
答案
参考答案：B
解析：
集合竞价市场(call market)主要是撮合买卖订单来决定单一价格，该价格往往在一些小的市场或者一些大的市场决定开盘价格时使用。连续交易市场(continuous trading market)在开盘中的任何时间，交易都能够被执行。