____ of time and energy have been spent in making the earthquake-stricken areas a permanent museum to remind people how disastrous a natural disaster can be.

A．A great deal

B．A good many

C．Large numbers

D．Large quantities

“有明确的骶残留和部分保留区超过三个节段”属于（）

A.骶残留

B.腰残留

C.部分保留区

D.完全性损伤

E.不完全性损伤