第29题: [填空题]A what you say B apair of sunglasses C the listening machine D a visual sensor E who have disabilities F living forever in a computer Blind people will be able to see the world with______ 参考答案:B 答案解析:[解析] 本题题干信息为“盲人能够通过……看到世界”。文章第3段提到Blind people will use a visual sensor which will probably be built