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

填空题 Ray Kurzweil works with computers to help people______

填空题 Ramona is able to understand______

填空题 Blind people will be able to see the world with______

填空题 People without hearing problems may also be interested in using______