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如果关系模式R是1NF,且每个非主属性都不传递依赖于R的候选键,那么R的模式是()

多选题
2021-09-03 16:25
A、1NF
B、3NF
C、4NF
D、BCNF
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正确答案
B@#@B

试题解析

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