4 本身沒有鍵值屬性的實體型態稱為：(A)強實體型態 (B)組合實體型態 (C)部分實體型態 (D)弱實體型態

問題詳情

4 本身沒有鍵值屬性的實體型態稱為：
(A)強實體型態
(B)組合實體型態
(C)部分實體型態
(D)弱實體型態

參考答案

答案：D
難度：簡單0.757576
統計：A(1),B(3),C(4),D(25),E(0)

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