--How much do you know about the 3D film technology?

--A little. Not until ____the hot movie Avatar ____some about it.

A．did I see ,did I begin to learn

B．I saw, I began to learn

C．I saw, did I begin to learn

D．did I see, I began to learn

激发脏腑经络生理功能是气的 （）

A.推动作用

B.温煦作用

C.防御作用

D.固摄作用

E.气化作用