证明：(1)[tex=16.143x1.286]BEOmk+eP2bIU7lVAa+qObT6oYzrWnIP25bGTUjsy/AlAf55nayZvIE6AzxMdd3mH6C5479ummmSl9369/sBaSfPin8YVCsvwdZAo7pFDKPc=[/tex]；(2)[tex=16.0x1.286]wVPzeW/UI2yYukBjlPeC0Rw9SgQGskirtuHVVsyMESn3EeAWMhIYUjKLMKbYvxUdbWqG1UyiRaxSKjx8S6zZgBeChXAozUA8ptv8nJ18BiM=[/tex]．

溶菌酶催化细菌细胞壁的水解,其切点是 未知类型：{'options': ['[tex=16.143x1.286]bFU3Y4GkCeLRQKpMmOK/pIuRpzzqsruxNzDqQvLirXMVIxAH22kLdh+vo7YEMnWyhRaQSJhveB0VgB0HGMcoOg==[/tex]', '[tex=16.143x1.286]hgiRocoS9tuKmgq4O4/RCEHH9CXy50yCQYgjF8p9o4yuOP3NBuWGzoBuRSD5bG2OVSlQpw1c+e1dJ3MC/iRmnw==[/tex]', '[tex=13.786x1.286]mwbSM70WQSkDh/V2MALyLTUFbFV4i0S+ZquTwAZB6p4GZgKdUSw8uNXK6+wFtR8m[/tex]', '[tex=13.786x1.286]80xtQRcs9WoTmYg+Q8mrwDlvgztqb+wQsulCa0ytzdEtUzSv5LI0OclRc4fSgDHJ[/tex]', '[tex=20.0x1.286]N7Iq054w8enD0gKMnxIwCPVJZXqwl06qzzhMUfBxE6BjzVsoAxqU2fwlLtpI8sKfsiJWd0KwtsqpGSVYY+vRrg==[/tex]'], 'type': 102}

判断下列晶体的熔点高低顺序:[tex=16.143x1.286]K7R2FAfPnkecB0tUweL4tO7tghuB6FGmhZy4wb7L9+zuEM+ajnq12Ca9NkDhLId0[/tex][input=type:blank,size:4][/input]

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

已知[tex=16.143x1.286]Xxo46E58vnNwQnoI2+Z4Zne/vvXryqj4mMDJWhyvic0G7EfYemDrJE3nO5A384Y/[/tex]按二进制完成下列运算，并用十进制运算检查计算结果:[tex=3.786x1.286]/83wCshGNtJbE+lSC9+gXw==[/tex]

已知[tex=16.143x1.286]Xxo46E58vnNwQnoI2+Z4Zne/vvXryqj4mMDJWhyvic0G7EfYemDrJE3nO5A384Y/[/tex]按二进制完成下列运算，并用十进制运算检查计算结果:[tex=2.143x1.286]qLNNO+23HhP0x/qA8heyug==[/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)