[tex=28.357x1.286]iZCMl8EK8Bb5gxvqBYZMNfJ1qD7Lou6rJ9bDV65tIafQk8cypsqXDqXSm2WFEIMqzZp26sUNx9URW6LIH/Y7ApRTdOEGYzZKkJxa+xx6TXgReiZqQCLHIC8MxtYAXye+E7DKcGKRYA3WQNDBhlqBNA==[/tex][tex=4.5x1.286]clAP50cPFVKzsWllHL+HrS3l3YRyFwEfwgBGulaSvvM=[/tex]

[tex=28.357x1.286]1YDOKxxjHmcd3QFRVMPZrDpbIv1u7EJnyU3d56f/HntcC+QRvvUU2T7ok/JNxKA1xl70aBopqVodT8k5vpoSB+54+X4GyM0ojAnNzsciZaftCu/HIMikOg+jfbQvigYTNMqBSfLBDM9e2Nc3sn5bMg==[/tex][tex=35.429x1.286]UMXpjwUj/TG0zwsc/mybjiAj21qlhPXjl14eaW/eRflweKr4+77R6JiLx0vfZ+Tj+XF60rI2gfG5XWYKDkY1Zm5N4CssLsuGxkpAWYLnwmTOeuYGs31xFIVvFkOOQop9jTxcwm878tSHZZqpyk6MwggISi45veI5+1N6ooldF2Q=[/tex][img=214x266]179c66ab884e958.png[/img]

[tex=28.357x1.286]q86RqsgoROK1MnRThg6ClglA36xBNsTktDVg0jzywLymGlxRVCxzoldc524DfDUtd0KvtdOM1BWVo/h+0VSheT8vWEKGhzBbdS/lj4JXIwrzIpiPMvEJD/na0IbCvXlz+wtFI8mQcU3IQZZJ2XX+ww==[/tex][tex=32.357x1.286]yD9i4NV6xRVwBctIVd5m0qCaGaJuNg9gne1TziWeEjSSjvZN6GCw1Z5AdDtZBXEoz+KU0VAUxN7qCzvGP8ybxY32mrdrMe77nJaTwaR8IeN8RK5+BDzZKhWTg+f6ksma1efiYY+xR9nzwFLOchXXqg==[/tex][tex=13.714x1.286]CkZ1SBCtWaS4bRrFly1SGrjjqseFNpg1fxCI/YWoQD6s05C93Wdx5luFBQq2bLXqSDxLTwO0r4UmdN4N/n/niw==[/tex]

下列选项为某变速器一、二、三、四挡的传动比，则三挡的传动比为（）。 A: 0.969 B: 1.286 C: 1.944 D: 3.455

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)

男性，[tex=28.357x1.286]zN8iFxTMRvues8o2sbP4V4f9R4cXC2BP9ZFCjZgFnOD31UyH9iy6MnQcnsY+pd7aHD+yumnaA13/7x+A3m0H7poK6ltwVrECN+h9s5S1GDzNyre8kzyuQUUcA13X/SI3[/tex] 长充盈缺损。食管镜活检报告为食管癌，锁骨上窝无肿大淋巴结，其余检查未发现异常。其治疗应为 未知类型：{'options': ['手术治疗', '放射治疗', '[tex=12.214x1.286]1KVRp6uLxf/rXCmBXKdIy0bqoR0sr6Es5gaq/J1nghqTEoyg/Uzvjt7HEky9t2CH[/tex]', '化学疗法', '中医中药治疗'], 'type': 102}

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)