.Saving resources is a basic policy of our country . And it proves _____ to its sustainable development .
A.to be great significance | B.to be of great significant |
C.of great significance | D.great significant |
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.Saving resources is a basic policy of our country . And it proves _____ to its sustainable development .
A.to be great significance | B.to be of great significant |
C.of great significance | D.great significant |