document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=72607\">聆听有 3400 年历史的音乐</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=72609\">物种灭绝和范围缩小导致全球食物网的崩溃</a></p></div>");