[tex=38.143x1.286]OnJ3fTAdchXPrxLcpNC3nto0/PRMyzanTVPYMaC3Q9pOVvtBcBLGdrmtrAniZWYfkDI9l+J/AJefr3cu0hLZu2qbOmcmlfozCuDBHZeT7fHlPG3ryIbvPUNZw8LXJWs9D1a1fE3Vhp7BbLMxOyDox6RX3++34LuHXpfPC8HKqWo=[/tex][tex=37.429x1.286]LakJwarEuIZPwTqIMs+4KJJOLqiWOM0TD99GAFcP+W03wOHbW0Xtxx6pV+JKolqGIFZfupjpZ/yokVI5oBRNNjX1Aj/p7E/HR/xpMykgcWTFncn92kUvdZN7YDyNRCoxO45WBtt3FJXmpFWds3OybhBO+GbP5fje3nHRW027EuU=[/tex][tex=13.714x1.286]ys77LUSt9GDITxhQWcjvotukTnaKAb6s8T2vF0oCTMhL2lF9bsMeFcvM0miSq4VP43XO0PUy4QTacYs3OnDOoEZ5B92EC6KquJXHw73YygW3CqI+StGYf7H61LjgAAI+[/tex]

[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]

[tex=2.929x1.286]p3y2AkBvj4VeXD0t3hDKhg==[/tex][tex=7.786x2.786]fnpmC2J6JmQBLyo5NmGAz6M1T9pdiyiUTCqjmZ5M2BCmBHxx+nAll0xIm2WO7S9xe3uBkyW7GfWWcPCqRFkpTF8PVVi78J/ZB2j/yOkuMn0=[/tex][tex=13.714x1.286]lkYFCzUvZXH/qTAQTED5VhSDULRYoU34ddtT4ZjhtEeiJeHNo9Bpgu7ITMp6UvUMYDVsVd2W5hgTMGzOAjCTpw==[/tex][tex=11.071x1.286]MkCxNfEU9WY57v1GWGnwOUxj6OGISntC0pfTEu+wlLhFk8K3UsL4kgN3HehgIyBc[/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=13.714x1.286]TIU+3STzoKQC24aoJ+inJ4Ap+C3mVo8vZBlWtWfzQzXfVJ3t1QdEEL2BuT1uqukD1IrqQ44gnMVesUHiWzdQoA==[/tex] 未知类型：{'options': ['[tex=14.357x1.286]1ffjggsRv4ypY+hSllsv8Zkji88y95Uvszf0EtNWQKkiO3R+Z4KyyGaOVtZZybDdM2wNt92C9tFlxRsa4EfEOA==[/tex]', '去除水疱皮', '油质纱布包扎创面', '面部创面不包扎', '创面使用抗生素预防全身感染'], 'type': 102}

质量为2kg的质点的运动学方程为[tex=13.714x1.286]GroCSfsiM/aqOgkfEmRsNdmUUzBkSTvYwz//1yaBwAGErL6lNGqhA8nK6XFfY8PyW2RRA/oOZiXSqQbtf0s8UCsMMb7j6kCqdcgKDMnwSE0=[/tex]（单位：米，秒），求证质点受恒力而运动，并求力的方向大小。

设方程[tex=13.714x1.286]tG7qZbNIviZWSJv9MomgimkNI6tIwWG3VHoCwex+8caZgSLkE9gzjCpXaapIoFcQ[/tex]的两个根是[tex=0.643x1.286]vYiGJJ9TAtvnQmM1PsOB8g==[/tex]和[tex=0.643x1.286]mI2l8V/Tmuo7C2MtPPAzQQ==[/tex]，则[tex=2.286x1.286]KpSatIvR7/8odXMGx3QJeeYGECayGHF27l36YmJUorM=[/tex] 未知类型：{'options': ['[tex=1.143x2.0]u8hVn33MB++oEbQj6Ejis2X7z0lWV33cC3lN1nt0dTA=[/tex]', '[tex=3.143x1.286]emuAcvMRdxXBL7qEweQ86w==[/tex]', '[tex=1.429x1.286]O4qcG3Me3DsxWoMNSle5oA==[/tex]', '-50', '50'], '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}

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)