[tex=22.571x1.286]CksDSAEOBoFWd95eG6zTnvLI7++nop4CKlppbD5daecSR8uViX/UspM2P68EXldOYfQG57K1ERdzrv71uYVKyBMHIyzD2xTcG1NEO9g3UC0=[/tex]

[tex=42.571x1.286]lixF7jlU5ZroO56+qE0uJMFlIdtdIlyI2OIW8kzCzJI5jSgP0L1CbXNvud82YuCZAfm280cvte6ouj/Ig6Bgerxbq2gKH5Rfh8h+FcbsTYfV3yy5HhQKVkq3CNMhKXjDTc5axVoMX1Lj5cURIfOlJIAsb5z/S4u2t9Hj0Xo9mR2Q9unAkQwXnyI6WdwpYdRn[/tex][tex=22.571x1.286]Bl/J8N3TLtJX0/SNDOyOmlHk5kcKvT7aRlkkPZV35AaaG3Rmugj1o+l9qR941mfguqOS75fkpj8YdTkQNgZLv3Sk9DGtZLuu706AH68N/wg=[/tex]

[tex=22.5x1.286]939R6SfT/oNwhAB3xvU46ttvyJtm3ME6083okmH8ueBD2R4GrfqFo/1mq9yW6o9lqBGhGmc0b+jKfexZTC/hYPZYA3GqhrFoGe3/xq1bG/8=[/tex][tex=22.571x1.286]l6+R/GwykrzdEaYsxABcC4S4UpbRYDB1YfZPbyU2uFCgtySjDhy77soSKzVXMJBJQQOkx0t+b9A5pG61MJogdPIWwRTlZcQ/NKlHt1+gfj0=[/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

[tex=40.714x1.286]qqLYsOAVcRKLqNaZPdpguHeTo3spum+b7qjXZeSVJK2VxfL8m1nVVwSI/AOmA6XpeXSoFNFe/GFxP/qFlRlxk+GsB3ts7yrWHkq1dK/kyoEw9Uy889j+StLjmHfl2xI0Hn0UPbkn6TmEg+U+3eJVKSXeq6/ZSiM+lchGQTvauaKf+r7+T1FlpGp2IrHemkP/[/tex][tex=30.286x1.286]hriQf3NfffN5aVJKjSg8y2LbWgkdbUkpqpkQW1p4aA0/lOFxSvjctZYlMSB3fragvgTa7WAncJSvoDpTBCoWpWWRF0IjjXjdGas/340394X3EQY/s6vlliLcIvqG3XRAFiFtMSTZQLKL3zmBpoMGvA==[/tex][tex=23.714x1.286]B2E3fHNLZYD+MKKIjoWb+b6nuIyvbtfAvx93iySVC43BQdalW1O870ITGMGK9DAqXNyekF5xOtyThsOMXk8N8HZjbW7jcyHkAOKyP4SEWfjTTvYf6JyosdUH3DZGyfgw[/tex][tex=22.571x1.286]7nNhYfzgxqug/nC57i5+LNgfhmFVYfBRKa6qcJqQF5+3c2EbicFrNQAwO6iEl2Pt/TvISTT9EUOItpYQbjAMY3d+RZEmadAKzADa3Vf/v/Y=[/tex]

计算下列等温(298K)反应的熵变化:[tex=13.786x1.286]k22r4x6u/UihM8D5SEcS1qpZHbYFZeO3HVm6L82yVj6k/v+HGTejomKFxZKWDvyqd1SZ/QATb4qyyfZbNOWfAyxoedzzHIYirLV4qMroDCo=[/tex]已知 [tex=2.357x1.0]/NnQehdlK2QR+QNALFVBUw==[/tex] 时的标准熵如下: [tex=22.571x1.286]m4SMYy4B2ufX4XtEG4cYBS2UoE514eQXVhCD2eNiE8L8pKqAXDqvcV8zxl4qfGDfnHxBuI1DkWfnqpKYGPvi2pFX/lD+c7T3YzP+lgkVMMT953cilSQ33/IuqQ1yDB3avSYRyil31WT38W/lBJ0cZg==[/tex][tex=10.143x1.429]scxnNOyCazkwGPwMs25ZTSAwGnoHjckUgPK0bd/T5lFzE8EASSExDWLlCjw02xvk7tYNteLGEHyBbuG0dnKbPQ==[/tex].

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)

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)