document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=68613\">激光聚变实验取得重大突破</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=68615\">南极特怀特冰川下出现高地热现象</a></p></div>");