Revisions are to be made consistent with the format of the specification using the provisions of FAR21.50 as a basis.
修订应以FAR21.50的规定为基础，与规范的格式保持一致。
A.By using the basic provisions of FAR 21.50, revisions become consistent with the format of the specification. B.FAR21.50 provisions are the basic to the revisions which are consistent with the format of the specification. C.To make reservations consistent with the format of the specifications, the provisions of FAR21.50 should be adopted as a basis.正确答案B
