原发性三叉神经痛检查可发现（）。

A.面部有疼痛触发点

B.面部感觉减退

C.角膜反射消失

D.张口下颌偏斜

E.咀嚼肌萎缩

The global financial crisis, ______ started in the USA in 2008, affects almost every country, especially some developed countries.

A．what

B．it

C．which

D．that