A-A+
A spokesperson for Solaris International annou
问题详情
A spokesperson for Solaris International announced that the company would ______on strengthening investor relations in South America.
A.repeat
B.surpass
C.franchise
D.concentrate
参考答案
正确答案:D
解析:查看四个选项我们发现能够与介词on搭配并且文意通顺的词只有concentrate。concentrate on的含义是“集中于(某事物),专心致志于(某事物)”。