不久前，全国多家媒体相继关注到重庆长江大桥南桥头的一道“奇观”：一个长３００米、高４５米，面积相当于三个足球场，号称耗资上千万元，获得上海大世界吉尼斯世界记录认证书，被认定为世界最大的广告牌———“中国龙”广告牌。广告牌于１９９８年落成时曾引起轰动，但“? Not long ago, a number of media across the country paid close attention to the “wonders” of the south bridgehead of the Chongqing Yangtze River Bridge: one is 300 meters long and 45 meters high, occupying an area equivalent to three football fields and is claimed to cost tens of millions of yuan to acquire the Shanghai Grand Prix Nice world record certification, was identified as the world’s largest billboard --- “China Dragon” billboards. When the billboard was completed in 1998, it caused a sensation but "?