2-1 企业资信评估的目的 2-2 企业资信评估的内容 2-3 资信评估的程序和方法 2-4 资信评估指标的计算 2-5 企业资信等级的划分与评定

外研版（三起）（2012）小学英语四年级下册Module 10 Unit 2 Sam had lots of chocolate.Module 10 Unit 2 Sam had lots of chocolate.习题(2)

外研版（三起）（2012）小学英语六年级下册Module 5 Unit 2 He's riding his bike,but it starts to rain.Module 5 Unit 2 He's riding his bike,but it starts to rain.课件(2)

外研版（三起）（2012）小学英语六年级下册Module 5 Unit 2 He's riding his bike,but it starts to rain.Module 5 Unit 2 He's riding his bike,but it starts to rain.教案(2)

外研版（三起）（2012）小学英语六年级下册Module 5 Unit 2 He's riding his bike,but it starts to rain.Module 5 Unit 2 He's riding his bike,but it starts to rain.习题(2)

外研版（三起）（2012）小学英语五年级下册Module 9 Unit 2 Mum bought new T-shirts for you.Module 9 Unit 2 Mum bought new T-shirts for you.课件(2)

第五章5-3实与复二次型的分类 1.复、实二次型的规范形 定理复数域上的任一二次型f在可逆变数替换下都可化为规范形 zi+…+z, 其中r是f的秩.复二次型的规范形是唯一的. 证明复数域C上给定二次型) f=, x,x, ( =ai 设它在可逆线性变数替换X=TZ下变为标准型 d1z2+d2z2+…an 这相当于在C上n维线性空间V内做一个基变换 (n2n)=(1,2EnT 使对称双线性函数f(a,B)在新基下的矩阵成对角形

外研版（三起）（2012）小学英语五年级下册Module 9 Unit 2 Mum bought new T-shirts for you.Module 9 Unit 2 Mum bought new T-shirts for you.教案(2)

外研版（三起）（2012）小学英语五年级下册Module 9 Unit 2 Mum bought new T-shirts for you.Module 9 Unit 2 Mum bought new T-shirts for you.习题(2)

（一）选择题： 1． 如图，S1、S2 是两个相干光源，它门到 P 点的距离分别为 r1 和 r2，路径 S1P 垂直穿过一块厚度为 t2 ，折射率为 n1 的介质板，路径 S2， P 垂直穿过厚度为 t2 折射率为 n2 的另一介质板， 其余部分可看作真空，这两条路径的光程差等于