共找到 163737 与回答thenexttrainfromheretoLondonisinsixhours 相关的结果,耗时292 ms
A.(C, B, D, A, P, E, I, J, G, H)B.(C, B, D, A, E, F, I, G, J, H)C.(B, A, D, E, F, G, I, J, H, C)D.(B, C, D, A, E, F, I, J, G, H)
A.(A, B, D, C, F, E, I, J, H, G)B.(A, B, D, C, E, F, I, H, G, J)C.(B, F, G, E, A, I, D, C, H, J)D.(B, F, G, J, A, E, D, I, C, H)
A.(C, B, D, A, F, E, I, J, G, H)B.(C, B, D, A, E, F, I, G, J, H)C.(B, A, D, E, F, G, I, J, H, C)D.(B, C, D, A, E, F, I, J, G, H)
设关系模式R为R(H,I,J,K,L),R上的一个函数依赖集为F={H→J,J→K, I→j,JL→H},分解(23)是无损联接的。A.p={HK,HI,IJ,JKL,HL}B.P={HIL,IKL,IJL}C.P={HJ,IK,HL}D.P={HI,JK,HL}
A.(A, B, D, C, P, E, I, J, H, G)B.(A, B, D, C, E, F, I, H, G, J)C.(B, P, G, E, A, I, D, C, H, J)D.(B, F, G, J, A, E, D, I, C, H)
设关系模式R为R(H,I,J,K,L),R上的一个函数依赖集为F={H→J,J→K,I→JJL→H},分解(45)是无损连接的。关系模式R(A,B,C,D,E)中的关系代数表达式σ5<'2'(R)等价于 SQL语句(46)。A.ρ={HK,HI,IJ,JKL,HL}B.ρ={HIL,IKL,IJL
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