Horatio Spafford, who was born in 1828, was a wealthy Chicago lawyer with a promising career, a beautiful home, a wife, four daughters and a son.

    At the very height of his financial and professional success Horatio and his wife, Anna, suffered the loss of their young son. Shortly thereafter, on October 8, 1871, the Great Chicago Fire destroyed most of his real estate(地产) Investment.

    In 1873, Spafford planned a boat trip to Europe in order to give his wife and daughters a much-needed vacation and time to recover from the loss of their young son. Spafford sent his wife and daughters ahead of him while he remained in Chicago to take care of some small business. Several days later he received notice that his family's ship had had a collision (碰撞). All four of his daughters had drowned, only his wife had survived.

    With a heavy heart, Spafford boarded a boat that would take him to his broken-hearted Anna in England. It was on this trip that he wrote those now famous words: When sorrows like sea billows roll, it is well, it is well with my soul.

    Philip Bliss (1838-1876), composer of many songs, including Hold the Fort, Let the Lower Lights be Buming, and Jesus Loves Even Me, was so impressed with Spafford's life and the words of his hymn (赞美) that be composed a beautiful piece of music to accompany the poem. The song was published by Bliss and Sankey in 1876.

    For more than a century, the tragic story of one man has given hope to countless people.

材料一：“第一条，第一项，本宪法所授立法权，均属于由参议院与众议院组成之国会。

……第七项，凡通过众议院及参议院之法案，应于成为法律前呈于合众国大总统。大总统如批准该项法案，即应签署之，否则退还之。……

第二条，第一项，行政权属于美利坚合众国大总统，大总统任期为四年。……

第三条，第一项，合众国之司法权，属于最高法院及其国会随时制定与设立之低级法院。最高法院与低级法院之法官非玩忽职守，得终身任职。……”

——引自1787年《美利坚合众国宪法》

材料二：“中华民国之主权，属于国民全体……。中华民国人民一律平等，无种族、阶级、宗教之区别。……人民有人身、居住、财产、言论、出版、集会、结社、通讯、信仰等自由；……参议院对于临时大总统，认为有谋叛行为时，得以总员四分之三以上出席，出席员三分之二以上之可决弹劾之。……”

——引自《中华民国临时约法》

材料三：苏维埃社会主义共和国联盟为工农社会主义国家。苏联之经济基础为社会主义经济体系及社会主义生产工具与生产资料所有制。苏联社会主义所有制表现为两种形式：国家财产（全民财产）；合作化集体农庄财产（各集体农庄财产、各合作社财产）。

──《1936年苏联宪法》

材料四：“第一条，中华人民共和国是工人阶级领导的、以工农联盟为基础的人民民主国家。……第三条，中华人民共和国是统—的多民族的国家。各民族一律平等。……第五条，中华人民共和国的生产资料所有制现在主要有下列各种：国家所有制，即全民所有制；合作杜所有制，即劳动群众集体所有制；个体劳动者所有制；资本家所有制。第六条，国营经济是全民所有制的社会主义经济，是国民经济的领导力量和国家实现社会主义改造的物质基础，国家保证优先发展国营经济。

——1954年《中华人民共和国宪法》

回答下列问题：

如图，在△ABC中，AB=AC，∠A=36°，BD、CE分别是∠ABC、∠BCD的角平分线，则图中的等腰三角形有（　　）