document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=68738\">加拿大比特币矿场偷建电厂</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=68740\">在试管中模拟土卫泰坦上的奇特化学世界</a></p></div>");