考察过渡词: 可以用在文章最后一段表示总结的过渡词有: finally/ at last最后,终于; in brief/ short简言之; in conclusion总之; in summary摘要地说; to conclude/ summarize/ sum up总而言之; briefly简单地说; above all最重要地; as a result 结果; as I have said 如我所述; at length最后,终于. B选项in addition意为此外. 故选B.