Due to the widespread of this medical technology，more diseases can be discovered and treated at an early stage.
A. presentation
B. application
C. qualification
D. appreciation
网友回答
A. presentation
(答案→)B. application
C. qualification
D. appreciation
解析：
句意为：由于这种医药技术的广泛应用，越来越多的疾病可以及早发现并且治愈了。所以此空为“应用”的意思，故B项正确。presentation展示，呈现；qualification资格；appreciation欣赏，感激。