A (72) is a file that contains metadata—that is data about data.(72)A.documentB.Excel tab

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A (72) is a file that contains metadata—that is,data about data.

(72)A.document

B.Excel table

C. database

D.data dictionary

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗