自然资源分为()。

A.生态资源

B.生物资源

C.土地资源

D.矿产资源

E.经济技术资源

It was not _____ she took off her glasses _____ I realized she was a famous film star.[ ]

A. when, that  

B. until, that  

C. until, then  

D. when, then