题目类型：
填空题
题目内容
Doctors are now using surgery to preserve _____ in many people with a certain disease who would otherwise go blind.(eye, sight)
正确答案
eyesight
题目解析
译文：医生现在用外科手术来保护一些因为某种疾病可能会致盲的人们的视力。根据句意，这里填视力（eyesight）比较合适。答案为eyesight。