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— ______ people travel every year?
— Perhaps when we are talking about it, more than 100 planes have taken off around the world.
考古工作者对一座古墓进行考古挖掘时,发现了许多五铢钱、提花机等文物。请你判断这座古墓的主人最早可能生活在( )
用括号中所给单词的适当形式完成下列句子