[解析]
(1)C,细节理解题,从第2句中的"…had died of a heart attack…"可知C选项是正确答案.B选项attack是"攻击"的意思,而文中出现的是heart attack,"心脏病",故答案为C.
(2)D,细节理解题,根据句子Raisa Mazepa,in the hospital.She had just been diagnosed(诊断) with cancer and was too weak even to attend her husband's funeral可知,Raisa Mazepa没有参加她丈夫的葬礼,故答案为D.
(3)B,词义猜测题,介词"from"表示动作的出处、来源,而后面的介词宾语是"the Moscow Metro",可知"Moscow Metro"是"emerged"这一动作的起源地,因此,B选项符合原文的意思.
(4)D,细节理解题,文中提到Politkovskaya姐妹俩,以及她的父母、女儿,因此有五个人.
(5)A,推理判断题,从"Politkovskaya was a special reporter for the small newspaper Novaya Gazeta,…"一直到文章的结尾,作者简述了Politkovskaya敢于直面社会的不良现象的正直性格,而这是其他记者所不屑的,因此A选项是正确答案.