The global financial crisis started in the USA in affects almost every country es

问题补充：

The global financial crisis, started in the USA in , affects almost every country, especially some developed countries.

A. what

B. it

C. which

D. that

答案：

A. what

B. it

(答案→)C. which

D. that

解析： 考查非限制性定语从句，which指前面的先行词The global financial crisis，句意：发生在美国的金融危机，影响了几乎每一个国家，尤其是一些发达国家。所以选C。