A great deal of science and technique has been______since China carried out reform and open policy.

1. A.
   brought down
2. B.
   brought in
3. C.
   brought out
4. D.
   brought up

A great deal of science and technique has been______since China carried out reform and open policy.

A.brought down                   B.brought in   C.brought out                    D.brought up

A great deal of advanced science and technology has been ______ since China carried out the reform and opening policy.

A. brought down    B. brought in    C. brought out    D. brought up

A great deal of advanced science and technology has been _______ since China carried out the reform and opening policy.

A. brought down     B. brought in          C. brought out    　D. brought up

A great deal of energy ________ this way.

1. A.
   are saved
2. B.
   were saved
3. C.
   is saved
4. D.
   saves