题目内容
We are , for the most part, collegial creatures , though we often usehigh-tech electronic systems to copmmunicate.
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The interactive nature of exhibitions ,by which visitors may not onlyget new ideas, but talk them through eith experts online, is much apppreciated.
Many attendees cancel important puechases in anticipation of an exhibition.
Exhibitions help praticipating companies to accomplish non-promotional marketingobjectives, because exhibitions increase brand expoure.
竖井和横通道是暗挖隧道和的临时通道，也是送气通风口和水、电的输入口。
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