In rencent years, China and the USA have been a lot of_____of views about the same problem.
A.replacements B. transformations C. changes D. exchanges
In rencent years, China and the USA have been a lot of_____of views about the same problem.
A.replacements B. transformations C. changes D. exchanges
D
句意：近几年中美两国在相同的问题上交流了很多观点。exchange用作可数名词，意思为“交换；交流；互换”， exchanges of views交流观点。change改变或变更原有的东西或人,使之不同。replacement代替；取代；更换；transformation变化;转变;变形。