设有关系模式 R(U , F) ,其中 U = {X , Y , Z} , F = {X→Y } ,则该模式最高满足
A.
1NF
B.
2NF
C.
3NF
D.
BCNF
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参考答案:
举一反三
【简答题】What is the English for the Chinese in the sentence? Please use a phrase in Text I of Unit 7. Tom's father "拉关系、走后门" and got him out o jail in the end.
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