document.write("<div class=\"prevBox\"><div class=\"prevBtn\"></div><p><a href=\"/story?sid=71300\">美国承诺结束反卫星导弹试验</a></p></div>");document.write("<div class=\"nextBox\"><div class=\"nextBtn\"></div><p><a href=\"/story?sid=71302\">直升机将尝试在半空捕捉火箭助推器</a></p></div>");