Independent innovation has brought us a in profits,40% higher than in the traditional way.
A. boom
B. failure
C. decrease
D. suffering
网友回答
(答案→)A. boom
B. failure
C. decrease
D. suffering
解析：
考查名词词义。boom繁荣；failure失败；decrease减少；suffering痛苦。由句意可知A项正确。