建筑物倒塌事故处置中，救人的顺序是（）。

A、由深入浅

B、由外向内

C、先易后难

D、先重伤后轻伤

E、先救人后救物

Not until he called the secretary three times ______ that the manager went to an important meeting. [ ]

A. did he tell    

B. he told          

C. was he told      

D. he was told