Rather than sticking to the principles stubbornly, China is now adopting a new concept in economic policies in a/an way that shows its own characteristics.
A. sustainable
B. flexible
C. invisible
D. available
网友回答
A. sustainable
(答案→)B. flexible
C. invisible
D. available
解析：A. sustainable可持续的，B. flexible灵活的，C. invisible看不见的，D. available可利用的，可获得的，句意：不是固执的坚持原则，中国正在以灵活的方式在经济政策上采取能展示它自己风格的新概念。所以选B。