行车日志是指“（）”或“（）”。

根据过滤器的响应动作类型分类：告警日志（AlertLog）、阻断日志（BlockLog）、误用日志（Misuse and AbuseLog）、流量门限日志（Traffic Threshold Reports）。（）

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The full title of the U.K. is the United Kingdom of （）and （）

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布尔运算符AND是指输入两关键词是“或”的关系。

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行车日志包括“编组（区段）站行车日志（运统2）”和“中间站行车日志（运统3）”

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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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AND表示或门，OR表示与门。

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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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