如图所示的E-R图,对应的二维表是()https://assets.asklib.com/images/image2/2017082410293350050.jpg

A .https://assets.asklib.com/images/image2/2017082410300526410.jpg B .https://assets.asklib.com/images/image2/2017082410301243952.jpg C .https://assets.asklib.com/images/image2/2017082410301885358.jpg D .https://assets.asklib.com/images/image2/2017082410304426096.jpg

时间:2022-09-01 14:08:36 所属题库:计算机数据库系统原理综合练习题库

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