某个体的基因型是YYRr,它在减数分裂后形成的配子是() A: YR和YR B: Yr和Yr C: Yy和Rr D: YR和Yr
某个体的基因型是YYRr,它在减数分裂后形成的配子是() A: YR和YR B: Yr和Yr C: Yy和Rr D: YR和Yr
谓词公式”x(P(x)Ú $yR(y))→Q(x)中量词”x的辖域是() A: P(x)Ú $yR(y) B: P(x) C: $yR(y) D: (P(x)Ú $yR(y))→Q(x)
谓词公式”x(P(x)Ú $yR(y))→Q(x)中量词”x的辖域是() A: P(x)Ú $yR(y) B: P(x) C: $yR(y) D: (P(x)Ú $yR(y))→Q(x)
谓词公式(∀x(P(x)∨∃yR(y)))→Q(x)∧R(x)中量词∀x的辖域是 . A: P(x)∨∃yR(y) B: P(x) C: (P(x)∨∃yR(y))→Q(x) D: (∀x(P(x)∨∃yR(y)))→Q(x)∧R(x)
谓词公式(∀x(P(x)∨∃yR(y)))→Q(x)∧R(x)中量词∀x的辖域是 . A: P(x)∨∃yR(y) B: P(x) C: (P(x)∨∃yR(y))→Q(x) D: (∀x(P(x)∨∃yR(y)))→Q(x)∧R(x)
谓词公式"x(P(x)Ú$yR(y))®Q(x)中量词"x的作用域是 A: "x(P(x)Ú$yR(y)) B: P(x)Ú$yR(y) C: P(x) D: P(x),Q(x)
谓词公式"x(P(x)Ú$yR(y))®Q(x)中量词"x的作用域是 A: "x(P(x)Ú$yR(y)) B: P(x)Ú$yR(y) C: P(x) D: P(x),Q(x)
谓词公式∀x(P(x)∨∃yR(y))→Q(x)中量词∀x的辖域是() A: ∀x(P(x)∨∃yR(y)) B: P(x) C: P(x)∨∃yR(y) D: P(x),Q(x)
谓词公式∀x(P(x)∨∃yR(y))→Q(x)中量词∀x的辖域是() A: ∀x(P(x)∨∃yR(y)) B: P(x) C: P(x)∨∃yR(y) D: P(x),Q(x)
谓词公式"xP(x,y)Ù$t(Q(t,z)→"x$yR(x,y,t))中量词$t的辖域是() A: $t(Q(t,z)→"x$yR(x,y,t)) B: Q(t,z)→"x$yR(x,y,t) C: "x$yR(x,y,t) D: Q(t,z)
谓词公式"xP(x,y)Ù$t(Q(t,z)→"x$yR(x,y,t))中量词$t的辖域是() A: $t(Q(t,z)→"x$yR(x,y,t)) B: Q(t,z)→"x$yR(x,y,t) C: "x$yR(x,y,t) D: Q(t,z)
一阶公式"∀x(P(x)∨∃yR(y))→Q(x)中量词""x的辖域是()。 A: (P(x)∨∃yR(y)) B: P(x) C: ∀x(P(x)∨∃yR(y)) D: (P(x)∨∃R(y))→Q(x)
一阶公式"∀x(P(x)∨∃yR(y))→Q(x)中量词""x的辖域是()。 A: (P(x)∨∃yR(y)) B: P(x) C: ∀x(P(x)∨∃yR(y)) D: (P(x)∨∃R(y))→Q(x)
某电动机的代号为YR,这是一种
某电动机的代号为YR,这是一种
下列表达式中,写法错误的是( )。 A: 计算机-"computer" B: The Time Is+DTOC({^2012/08/08}) C: .T.+.F. D: {^2012/08/08}+10
下列表达式中,写法错误的是( )。 A: 计算机-"computer" B: The Time Is+DTOC({^2012/08/08}) C: .T.+.F. D: {^2012/08/08}+10
In our note-taking, "yr" stands for "year". Here abbreviations are used in note-taking.( )
In our note-taking, "yr" stands for "year". Here abbreviations are used in note-taking.( )