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I. Pronunciation (1’x 10) Directions: Choose the word whose pronunciation of the underlined part is the same as that of the given word. Then mark the corresponding letter on the Answer Sheet. 1. threat A. writhe B. father C. salty D. toothpaste 2. horrified A. opera B. totally C. extort D. grope 3. sniff A. slip B. collide C. lightning D. deprive

在绪论中已经指出，测量工作必须遵循“从整体到局部，先控 制后碎部”的原则，先建立控制网，然后根据控制网进行碎部测量 和测设。控制网分为平面控制网和高程控制网。测定控制点平面位 置(x,y)的工作，称为平面控制测量。测定控制点高程(H)的工作， 称为高程控制测量

如果方程非齐次项f(x,t)的形式比较复杂,难以求得非齐次方程的特解,就可以采用

AACC(American Association of Cereal Chemists Inc) Abbreviations x, xi, xu characteristics 226-227 Abrasion malt 223 Ale alcohol in 296 standards 182-184 Aleurone 164, 184, 220 as conditioning aid 124 as milling process 129-130 ash 184 barley 162

一、渐近线 定义: 当曲线 y = f (x) 上的一动点P 沿着曲线移向无穷点时,.铅直渐近线

一、反函数的导数 定理 x = (y) I , (y)  0 如果函数  在某区间 y内单调、可导 且即 反函数的导数等于直接函数导数的倒数.那末它的反函数 ( )在对应区间 内也可导

一、第一类换元法 问题cos 2xdx2 sin22x+C

1 First Order ave Equation SLIDE 1 The simplest first order partial differential equation in two variables(a, t)is the linear wave equation. Recall that all first order PDE's are of hyperbolic type INITIAL BOUNDARY VALUE PROBLEM (IBVP) 0,x∈(0,1)

1 Motivation The Poisson problem has a strong formulation a minimization formulation and a weak formulation T weak formulations are more general than the strong formulation in terms of regularity and admissible data SLIDE 2 The minimization/weak formulations are defined by: a space X; a bilinear The minimization/weak formulations identify ESSENTIAL boundary conditions NATURAL boundary conditions ed in a The points of departure for the finite element method are the weak formulation(more generally) the minimization statement (if a is SPD) 2 The dirichlet problem 2.1 Strong Formulation Find u such that