[color=#000000]试用[tex=0.5x0.786]gdMkE6SnyZedYLxpUxdkaQ==[/tex]变换法求解下列差分方程：[/color][color=#000000][/color](1)[tex=15.786x1.357]/oS6mIRz1WHFFxOcFWnqrF87laXN+7UrxSHwUepUafoE9A5t1/e6akiuZEvefqeL[/tex],[tex=10.714x1.357]+KTQovfPW2g/OioS6lF7Y/JSaQdsNTbmOZj0Za11XOaWgpugA0WZTO15PX+j2xMQ[/tex][tex=15.714x1.357]gkZCvoZhepAyayIzamkhvqLvjpjnbLG19MyhNkJqcPoGFzZZ2xZtDSNAt+JTQBDH[/tex],(2) [tex=16.643x1.357]xCNjqTMxh8REqfCdiBywePkG9h+XsFGwFNwnjimxwtybUP/JziKeI34w/2jSFTPE[/tex][tex=19.071x1.357]oSHVlzmZCRE9IMVaSB/QJxvyjyN3Xocbmiol02uPRA3syMWfEiA0wZVO85YtEKYV[/tex][tex=8.929x1.357]wiV1KNUnb57uDWXQR+IqQJXAp1tM5VqM9f3Z0pPrpiQ=[/tex](4) [tex=16.071x2.357]KYvGCyiB9w2958DPgB4riznRYdm3SbTduTCYZYbul6u8TVB04tYx9CNSobZyTzUG[/tex][tex=5.5x1.357]+zoBHsFCiBUrdx5xR9xdzA==[/tex]将[tex=15.786x1.357]/oS6mIRz1WHFFxOcFWnqrF87laXN+7UrxSHwUepUafoE9A5t1/e6akiuZEvefqeL[/tex]

【单选题】NO 2 、NO 2 - 、NO 2 + 键角大小关系正确的是 。 A. NO 2 > NO 2 - >NO 2 + B. NO 2 + >NO 2 >NO 2 - C. NO 2 - > NO 2 >NO 2 + D. NO 2 + > NO 2 - >NO 2

求定积分[img=179x43]17da65388c0b1ca.png[/img]； （ ） A: log(2^(1/2) + 1)/2 + 2^(1/2)/2 B: log(2^(1/2) + 1)/2 - 2^(1/2)/2 - 1/2 C: log(2^(1/2) + 1)/2 + 2^(1/2)/2 - 1/2 D: log(2^(1/2) + 1)/2 + 2^(1/2)/2 + 1/2

2 + 2 * (2 * 2 - 2) % 2 / 3

函数z=xsiny在点(1,π/4)处的两个偏导数分别为 A: √2/2,√2/2 B: √2/2,-√2/2 C: -√2/2,-√2/2 D: -√2/2,√2/2

2×2×2×2×2

HbF的构成主要是（） A: α2β2 B: α2δ2 C: ζ2ε2 D: α2γ2 E: ζ2γ2

胎儿期血红蛋白HbF的分子组成为（ ）。 A: ζ2ε2 B: α2Aγ2、α2Gγ2 C: ζ2 Aγ2、ζ2Gγ2 D: ζ2 Aγ2、 E: α2δ2 、α2β2

正常人血红蛋白多肽链的组成是 A: α2β2 B: α2γ2 C: α2ε2 D: α2δ2 E: σ2β2

函数[img=79x27]180355ae2690a03.png[/img]在x=2处的二阶泰勒展开式为 A: exp(sin(2))+cos(2)*exp(sin(2))*(x-2)+exp(sin(2))*(sin(2)/2-cos(2)^2/2)*(x-2)^2 B: exp(sin(2))+cos(2)*exp(sin(2))*(x-2)-exp(sin(2))*(sin(2)/2-cos(2)^2/2)*(x-2)^2 C: exp(sin(2))+cos(2)*exp(sin(2))*(x-2)-exp(sin(2))*(sin(2)/2+cos(2)^2/2)*(x-2)^2 D: exp(sin(2))+cos(2)*exp(sin(2))*(x-2)+exp(sin(2))*(sin(2)/2+cos(2)^2/2)*(x-2)^2