document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=76595\">首只胚胎干细胞系“嵌合猴”诞生</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=76597\">微软视窗操作系统诞生四十周年</a></p></div>");