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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香港联合交易所
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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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图层合并是指通过把两个图层的区域范围联合起来而保持来自输入地图和叠加地图的所有地图要素。在布尔运算上用的是“and”关键字，即输入图层and叠加图层。
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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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路演是国际上广泛采用的证券发行推广方式，路演的作用有（）。
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Solid waste generation，and electricity and water consumption are costly and have their own set of environmental（）.
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