document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=64532\">X 和 Y 染色体如何走到一起</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=64534\">百度发布量子机器学习工具</a></p></div>");