外研版（三起）（2012）小学英语六年级下册Module 1 Unit 1 I want a hot dog,please.Module 1 Unit 1 I want a hot dog,please.教案(3)

外研版（三起）（2012）小学英语五年级下册Module 8 Unit 2 I made a kite.Module 8 Unit 2 I made a kite.教案(3)

外研版（三起）（2012）小学英语五年级下册Module 2 Unit 2 Mr Li was a teacher.Module 2 Unit 2 Mr Li was a teacher.教案(3)

外研版（三起）（2012）小学英语五年级下册Module 1 Unit 1 We lived in a small house.Module 1 Unit 1 We lived in a small house.课件(3)

外研版（三起）（2012）小学英语五年级下册Module 1 Unit 1 We lived in a small house.Module 1 Unit 1 We lived in a small house.教案(3)

外研版（三起）（2012）小学英语五年级下册Module 1 Unit 2 She didn't have a television.Module 1 Unit 2 She didn't have a television.导学案(3)

第二章多元函数微分学 11-Exe-2习题讨论(II) 11Exe2-1讨论题 11-Exe-2-1参考解答 习题讨论 题目 若函数z=(x),方程Fx-a,y-=0确定,其a,b,c 为常数,F∈C2,证明: (1)由z=z(x,y)确定的曲面上任一点的切平面共点 (2)函数z=2(x,y)满足偏微分方程 a202=(a dxdy 今有三个二次曲面 2.设曲面S由方程ax+by+c=G(x2+y2+x2)确定,试证明: 曲面S上任一点的法线与某定直线相交

外研版（三起）（2012）小学英语五年级下册Module 1 Unit 2 She didn't have a television.Module 1 Unit 2 She didn't have a television.教案(3)

外研版（三起）（2012）小学英语五年级下册Module 1 Unit 1 We lived in a small house.Module 1 Unit 1 We lived in a small house.习题(3)

一、单项选择 1.下列化合物中()为路易斯 Lewis酸。 BF3(a)+NH3(b)-F3B-NH3 AICk3(c)+(d)-AlC14