开市和收市委托(market at open and close)
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The full title of the U.K. is the United Kingdom of （）and （）
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According to historians and specialists in demography,there are（）great population movement(s)in the history of the United States.
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public and private colleges and universities and community colleges offer（）.
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（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.
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The way in which people address each other depends on their age, sex, social group and personal relationship. The English system of address forms frequently used includes first name, last name, title+last name, （）, and kin term.
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（）都是不需要经纪人的市场。
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交易确认单必须经（）经纪人确认，经纪人必须配合结算部进行签字确认。
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金融市场中最主要的经纪人有（）。
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