As we all know, the present world financial crisis still has a bad on the development of the economy of every country.
A. stress
B. effort
C. effect
D. contribution
网友回答
A. stress
B. effort
(答案→)C. effect
D. contribution
解析：考查名词：A. stress 压力B. effort努力C. effect影响D. contribution贡献，have a bad effect on对…有坏的影响，句意：我们都知道，现在世界的经济危机对每个国家的经济发展有着不好的影响。选C。