document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=71715\">天文学家意外捕捉到超巨星参宿四的“大变暗”</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=71717\">如何让宇宙为我们思考</a></p></div>");