题目

 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或者括号中词语的正确形式填空，并将答案填写在答题卡标号为61～70的相应位置上。 Eleven­year­old Angela was stricken with a disease involving her nervous system. The doctors did not hold out much hope of her ever recovering  61.________ this illness. They predicted she'd spend the rest of her life in a wheelchair.  62.________ Angela firmly believed that she was definitely going to be walking again someday. The doctors were charmed by h从集合{1，2，3，4，5}的所有非空子集中，等可能地取出一个．（Ⅰ）记性质r：集合中的所有元素之和为10，求所取出的非空子集满足性质r的概率；（Ⅱ）记所取出的非空子集的元素个数为ξ，求ξ的分布列和数学期望Eξ