Due to the widespread of this medical technology, more diseases can be discovered and treated at an early stage.
A. approval
B. application
C. appointment
D. appreciation
网友回答
A. approval
(答案→)B. application
C. appointment
D. appreciation
解析：考查单词意思，approval意思“批准”，application意思“应用”，appointment意思“约会”， appreciation意思“欣赏”，句子意思“由于医疗技术的广泛应用，越来越多的疾病可以早期发现并治疗”