As we all know the present world financial crisis still has a bad on the development of t

问题补充：

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

答案：

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。