用描述法表示下列集合：[tex=15.143x1.357]8hKd+9KYBCY8mSKqisiQw/2jWU8w1HiTtYYvY+ETH7WvpH1R86m6JxjP1OUBbQsT[/tex]

设[tex=2.0x1.214]vnzjVhyzo/NIhVUgFyjLlA==[/tex] 是两个随机事件, [tex=15.143x1.357]ziMC+rMO5rkOv14wqxKd4AChgesoSpEux15KKC275MOgHItXrSf5eUIrPUDYIV4k[/tex].则[tex=4.571x1.357]8b1dF4hDj1YwNN61255sXw==[/tex][input=type:blank,size:6][/input]

一氯·一硝基·二硫氰·乙二胺合钴[tex=1.714x1.357]xq/grjSwMHzURdyB+twP5g==[/tex]酸铵的化学式是 未知类型：{'options': ['[tex=15.143x1.357]xgbCcbHCntljP/VjU11fn+Q8O6dIvOg+k5Lw4wh9LJ0PgfRtymERWMg4ZqnIQmqhzdrr/ry8ACqOBifN1qGylXwIdhYqJbiupnxAaQ3JnPe/5Bce7m6jDcBMKpnSG94Sh56iUnk6LdjLgJmHIRYg5g==[/tex]', '[tex=13.857x1.357]xgbCcbHCntljP/VjU11fn+Q8O6dIvOg+k5Lw4wh9LJ3hxpHYDM2kj75/WjbzJp42fE7BIONraSovcEVlf5MtINCgCQ/6J7EM3UUPAVlBAXdc75QjVbEBpi2YWYBwxsUG[/tex]', '[tex=15.143x1.357]xgbCcbHCntljP/VjU11fn/ZTJXxN4D3dK3MzbdsPJczESyuMHUx9xOo3Rj/j+sOGir5nPK9b05BfLrmnwCPWKVRafC20gCoc7O0yIPGqi0unHz6GuJiMYVmN/wJWsw599Blp4R05wV7+4o3zmvj8Sw==[/tex]', '[tex=13.857x1.357]xgbCcbHCntljP/VjU11fn+Q8O6dIvOg+k5Lw4wh9LJ3hxpHYDM2kj75/WjbzJp421DitKr8eq8IdcTbgk0FdhrRAZ/0FKX11rgQt0Sfq1tYlsUonrgEojO4A4G/bpcBV[/tex]', '[tex=13.929x1.357]xgbCcbHCntljP/VjU11fn+Q8O6dIvOg+k5Lw4wh9LJ2p2YT2po81ks+RwbVszdJsfFMGQgf1H+3yCkmKy/kIYURb+1Voe/A1EG2xV7xVhoQ=[/tex]'], 'type': 102}

假设某企业的短期成本函数是[tex=13.143x1.5]Qt1WrQ8TyoXPBP1lCUo0cxx2yce9rLYU8lf6WRbK7Z/v+rlDcd51Zwc2GQmMk7m4[/tex]写出下列相应的函数:[tex=15.143x1.357]Ym6NRyoeuC6eSgw9tsbyNGb7MQlV0YP1PSOtmBIIfXV/HCCmFXbfB2DmNammG/dT[/tex]，和 [tex=3.286x1.357]hWntc0u12n9/gDNir5g49g==[/tex]

假定[tex=15.143x1.357]i6RDJxj0nlnkgeA9WgnADaMHddDguPIp1QbN9i4y+aE=[/tex]，[tex=2.643x1.0]Tsgg8+1S+eiUjHFdMijgiA==[/tex]，试确定下列各条指令单独执行后[tex=1.714x1.0]oVray6uZ7+6o6FqRqYhIOg==[/tex]的值。[br][/br][tex=5.5x1.214]2vVkOR/iYirArxZjSGrpMQ==[/tex]

如果条件 [tex=0.786x1.286]BlkXDnmzWHxe4M6E9LlofQ==[/tex] 形为[tex=4.143x1.214]F0sdiE1z5Kq3vY4fuykI8Nk2F/k6wlARFGNjEFr/CA0=[/tex] 仅涉及到[tex=1.143x1.214]fka3aKdDfpgPhJacNaM4YA==[/tex] 中的属性, [tex=1.0x1.214]6ns9WPkDv7wTtBprGChOug==[/tex]仅涉及到 [tex=1.143x1.214]iASk972IwlYmkxCYFEHEcQ==[/tex] 中的属性,则有 未知类型：{'options': ['[tex=14.357x1.357]j3YLSyjR0MF0QC1nP/n0Nf2xOzrV8GRSkzE6JuqVjYEEMdjCY9dyZ9piW15E5rqaeSX6s7zkWXvRN7M1Zib/JsQEx9L4MUo8AKjkoak1su0v7FP20qAtikieCualM7ySf8uPrxkaiIkO5+Pr40ZFJSlrltC0Z4QiDzIFe86gIuogyEuZtQQ8Uyup170it0Hu[/tex]', '[tex=15.143x1.357]j3YLSyjR0MF0QC1nP/n0Nf2xOzrV8GRSkzE6JuqVjYEEMdjCY9dyZ9piW15E5rqaeSX6s7zkWXvRN7M1Zib/JmE1lUeqDoC8/bDo6VViufpZsMy8XkT1Yi0Ca6e5ctK2/7Sv2ZWlMXToDsQNevq5N3YhLU6ehUv1OagHzUphQ5wc7uhPnuQd6ECm3YUAxUlH[/tex]', '[tex=15.143x1.357]j3YLSyjR0MF0QC1nP/n0Nf2xOzrV8GRSkzE6JuqVjYEEMdjCY9dyZ9piW15E5rqaeSX6s7zkWXvRN7M1Zib/JoJvsDAUvvBBFVRM9Uth929+FkbLt9C7PRociHEgnq6eEmAkyaRDXgRNwpGkHMRw9jbRQOkU2N6Lu0j8srNHSniGGTl3n8yv9g+sli8t5ysr[/tex]', '[tex=14.357x1.357]j3YLSyjR0MF0QC1nP/n0Nf2xOzrV8GRSkzE6JuqVjYEEMdjCY9dyZ9piW15E5rqaeSX6s7zkWXvRN7M1Zib/JrUYq3MKbHjl7Pc3DRi9AOWPoL2aK0mm1gzbwJX21db/23peYaazBeW5/kb4/SNbpuy9cTBCv+O/21DMil0ybLUmEQ3dgSBOEHqWYXpC6tB0[/tex]'], '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)

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)