A.10B.11C.12D.13
A.一串相連柵格B.一個正方形C.一個坐標D.一串坐標
A.數(shù)據(jù)冗余大B.數(shù)據(jù)冗余小C.數(shù)據(jù)結(jié)構(gòu)復(fù)雜D.拓撲關(guān)系明晰