下列各组元素按电负性大小排列正确的是 未知类型:{'options': ['[tex=4.714x1.071]Y0B1BvOsNs44fr7lCg6z7w==[/tex]', '[tex=5.143x1.071]XI19ZXXUQWE0BlMEwELUrA==[/tex]', '[tex=5.214x1.071]+WsSDWe0njJZ6ksHj41nug==[/tex]', '[tex=5.571x1.071]WpC90pe+hmUU4Y/g/qQObA==[/tex]'], 'type': 102}
下列各组元素按电负性大小排列正确的是 未知类型:{'options': ['[tex=4.714x1.071]Y0B1BvOsNs44fr7lCg6z7w==[/tex]', '[tex=5.143x1.071]XI19ZXXUQWE0BlMEwELUrA==[/tex]', '[tex=5.214x1.071]+WsSDWe0njJZ6ksHj41nug==[/tex]', '[tex=5.571x1.071]WpC90pe+hmUU4Y/g/qQObA==[/tex]'], 'type': 102}
正常成年人清晨口腔体温在: 未知类型:{'options': ['[tex=3.571x1.071]TjgARJVPMMOYTg+urWUxOaKzwCVkg+pSmAXYF5FtNhYQLARTFBtkTR3zXpSGU3QP[/tex]', '[tex=5.5x1.071]DXoWtvM6Cgjz0HSf88HJn77wu3V1oYLFTgFvDsai2and4xg1IG+ecoEChssJMt6K[/tex]', '[tex=4.714x1.071]Z3HEm4aUrDtD/3TXoC/ir0VGahC8Cttyk3O4s7OyMaRmXG+9mh+Jaa1yFWRmleNW[/tex]', '[tex=4.5x1.071]kY2UylV6UMvUkogpuz1132BDDccRiUxaLHX2trgkRBE+ADX4LkXI6rlFBNTJWxX+[/tex]', '[tex=5.286x1.071]53z/EjSrnNiLoBVe76HpiBIqOaEhz+TV85t8UeYeE2q4nyG1kT3Ns2AmCTQPYOTK[/tex]'], 'type': 102}
正常成年人清晨口腔体温在: 未知类型:{'options': ['[tex=3.571x1.071]TjgARJVPMMOYTg+urWUxOaKzwCVkg+pSmAXYF5FtNhYQLARTFBtkTR3zXpSGU3QP[/tex]', '[tex=5.5x1.071]DXoWtvM6Cgjz0HSf88HJn77wu3V1oYLFTgFvDsai2and4xg1IG+ecoEChssJMt6K[/tex]', '[tex=4.714x1.071]Z3HEm4aUrDtD/3TXoC/ir0VGahC8Cttyk3O4s7OyMaRmXG+9mh+Jaa1yFWRmleNW[/tex]', '[tex=4.5x1.071]kY2UylV6UMvUkogpuz1132BDDccRiUxaLHX2trgkRBE+ADX4LkXI6rlFBNTJWxX+[/tex]', '[tex=5.286x1.071]53z/EjSrnNiLoBVe76HpiBIqOaEhz+TV85t8UeYeE2q4nyG1kT3Ns2AmCTQPYOTK[/tex]'], 'type': 102}
常人腋温一般为: 未知类型:{'options': ['[tex=3.786x1.071]TjgARJVPMMOYTg+urWUxOTFqTAqvQ7vqOh4AYPXZSJo=[/tex]', '[tex=5.286x1.071]DXoWtvM6Cgjz0HSf88HJn77wu3V1oYLFTgFvDsai2and4xg1IG+ecoEChssJMt6K[/tex]', '[tex=5.286x1.071]OBJdRljYleg3CMBzdTcfYOejNb0p3ih9Hs2X+YHdlJhNMPFWNdPq5it1bug67YJ/[/tex]', '[tex=4.714x1.071]vAs4DSxE9AhNbwXM5OlJFDx12NH+iv1JzxJiXCYEDlMQO4TqDQOWxD6SjKm5MUtE[/tex]', '下午比早晨可高[tex=1.643x1.071]IFPWks171QDjG/Yi4Zvt80qnABX/EIttp1Amo5m25pA=[/tex] 以上'], 'type': 102}
常人腋温一般为: 未知类型:{'options': ['[tex=3.786x1.071]TjgARJVPMMOYTg+urWUxOTFqTAqvQ7vqOh4AYPXZSJo=[/tex]', '[tex=5.286x1.071]DXoWtvM6Cgjz0HSf88HJn77wu3V1oYLFTgFvDsai2and4xg1IG+ecoEChssJMt6K[/tex]', '[tex=5.286x1.071]OBJdRljYleg3CMBzdTcfYOejNb0p3ih9Hs2X+YHdlJhNMPFWNdPq5it1bug67YJ/[/tex]', '[tex=4.714x1.071]vAs4DSxE9AhNbwXM5OlJFDx12NH+iv1JzxJiXCYEDlMQO4TqDQOWxD6SjKm5MUtE[/tex]', '下午比早晨可高[tex=1.643x1.071]IFPWks171QDjG/Yi4Zvt80qnABX/EIttp1Amo5m25pA=[/tex] 以上'], 'type': 102}
下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}
下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}
以下谓词蕴含式正确的是(): (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)
以下谓词蕴含式正确的是(): (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)
以下谓词蕴含式正确的是(): (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)
以下谓词蕴含式正确的是(): (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)
下列式中错误的是: A: (∀x)(A(x)Úp(x)) Û (∀x)A(x)Ú (∀x)p(x) B: ($x)A(x) Ù p Û ($x)(A(x) Ù p ) C: (∀x)(A(x)ÚB(x)) Þ (∀x)A(x)Ú( ∀x)B(x) D: ($x)(A(x)ÙB(x)) Þ ($x)A(x)Ù( $x)B(x)
下列式中错误的是: A: (∀x)(A(x)Úp(x)) Û (∀x)A(x)Ú (∀x)p(x) B: ($x)A(x) Ù p Û ($x)(A(x) Ù p ) C: (∀x)(A(x)ÚB(x)) Þ (∀x)A(x)Ú( ∀x)B(x) D: ($x)(A(x)ÙB(x)) Þ ($x)A(x)Ù( $x)B(x)
判断下列推证是否正确。 (∀x)(A(x)→B(x))⇔(∀x)(¬A(x)∨B(x)) ⇔(∀x)¬( A(x)∧¬B(x) ) ⇔¬(∃x) ( A(x)∧¬B(x) ) ⇔¬( (∃x)A(x)∧(∃x)¬B(x) ) ⇔¬(∃x)A(x)∨¬(∃x)¬B(x) ⇔¬(∃x)A(x)∨(∀x)B(x) ⇔(∃x)A(x)→(∀x)B(x)
判断下列推证是否正确。 (∀x)(A(x)→B(x))⇔(∀x)(¬A(x)∨B(x)) ⇔(∀x)¬( A(x)∧¬B(x) ) ⇔¬(∃x) ( A(x)∧¬B(x) ) ⇔¬( (∃x)A(x)∧(∃x)¬B(x) ) ⇔¬(∃x)A(x)∨¬(∃x)¬B(x) ⇔¬(∃x)A(x)∨(∀x)B(x) ⇔(∃x)A(x)→(∀x)B(x)
以下谓词公式中,( )不是逻辑有效式。 A: ($x)(P(x)∧Q(x)) Þ ($x) P(x)∧($x) Q(x) B: ("x)(P(x)∧Q(x)) Þ ("x) P(x)∧("x) Q(x) C: ($x)(P(x)∧Q(x)) Û ($x) P(x)∧($x) Q(x) D: ("x)(P(x)∧Q(x)) Û ("x) P(x)∧("x) Q(x)
以下谓词公式中,( )不是逻辑有效式。 A: ($x)(P(x)∧Q(x)) Þ ($x) P(x)∧($x) Q(x) B: ("x)(P(x)∧Q(x)) Þ ("x) P(x)∧("x) Q(x) C: ($x)(P(x)∧Q(x)) Û ($x) P(x)∧($x) Q(x) D: ("x)(P(x)∧Q(x)) Û ("x) P(x)∧("x) Q(x)
以下谓词公式中,( )不是逻辑有效式。 A: ($x) P(x)∨($x) Q(x) Þ ($x)(P(x)∨Q(x)) B: ("x) P(x)∨("x) Q(x) Þ ("x)(P(x)∨Q(x)) C: ($x) P(x)∨($x) Q(x) Û ($x)(P(x)∨Q(x)) D: ("x) P(x)∨("x) Q(x) Û ("x)(P(x)∨Q(x))
以下谓词公式中,( )不是逻辑有效式。 A: ($x) P(x)∨($x) Q(x) Þ ($x)(P(x)∨Q(x)) B: ("x) P(x)∨("x) Q(x) Þ ("x)(P(x)∨Q(x)) C: ($x) P(x)∨($x) Q(x) Û ($x)(P(x)∨Q(x)) D: ("x) P(x)∨("x) Q(x) Û ("x)(P(x)∨Q(x))