问题补充:
In rencent years, China and the USA have been a lot ofof views about the same problem.
A. replacements
B. transformations
C. changes
D. exchanges
答案:
A. replacements
B. transformations
C. changes
(答案→)D. exchanges
解析: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。