The lyrics of R&B are usually about _________.
举一反三
- The lyrics of R&B are usually about _________. A: the daily house chords B: the struggle and triumph in life C: the western cowboys D: the ambition of the younger generation
- 11.What are the blues lyrics usually about?
- 公式(p∨q)→r的主合取范式是( ) A: (P∨Q∨┐R)∧(┐P∨┐Q∨R)∧ (P∨┐Q∨R) B: (┐P∨Q∨R)∧(┐P∨┐Q∨R)∧ (P∨┐Q∨R) C: (P∨┐Q∨┐R)∧(┐P∨┐Q∨R)∧ (P∨┐Q∨R) D: (┐P∨Q∨┐R)∧(┐P∨┐Q∨R)∧(┐P∨┐Q∨┐R)
- 命题公式(p→q)∧「r的主析取范式为___________。 A: (﹁p∧﹁q∧﹁r)∨(﹁p∧q∧﹁r)∨(p∧﹁q∧﹁r) B: (﹁p∧﹁q∧﹁r)∨(﹁p∧q∧﹁r)∨(p∧q∧﹁r) C: (﹁p∧﹁q∧﹁r)∨(p∧﹁q∧﹁r)∨(p∧q∧﹁r) D: (﹁p∧q∧﹁r)∨(p∧﹁q∧﹁r)∨(p∧q∧﹁r)
- 求┐P∨(Q∧R) →(P∨Q) ∧┐R的对偶式 A: (P∧(┐Q∧┐R)) ∧((P∧Q)∨┐R) B: (P∨(┐Q∧┐R)) ∧((P∧Q)∨┐R) C: (P∧(┐Q∧┐R)) →((P∧Q)∨┐R) D: (P∨(┐Q∨┐R)) ∧((P∧Q)∨┐R)