10.2 随机误差的分布 10.3 滴定分析 10.3.1 酸碱反应及其平衡常数 3.1.1 酸碱反应 3.1.2 酸碱反应类型及平衡常数 3.1.3 活度与浓度 3.1.4 活度常数Ka、浓度常数 及混合常数 10.3.2 酸度对弱酸(碱)形体分布的影响 3.2.1 一元弱酸的摩尔分数 3.2.2 二元弱酸H2A的摩尔分数

HadCM3--Coupled atmosphere-Ocean general circulation model HadCM3 is a coupled atmosphere-ocean general circulation model(AOGCM)developed at the Hadley Centre and described by gordon et al (2000)and Pope et al (2000). Unlike earlier AOGCMs at the Hadley

一、选择题: 1、一质点受力F=3x2(SI)作用,沿X轴正方向运动。从x=0到x=2m过程中,力F作功为 (A)8J (B)12J (C)16J (D)24J

1.讨论下列函数的极值: (1)f(x,y)=x4+2y4-2x2-12y2+6; (2)f(x,y)=x+y4-x2-2xy-y2; (3)f(x,y,z)=x2+y2-z2; (4)f(x,y)=(y-x2)(y-x4); (5)f(x,y)=xy++,其中常数a>0,b>0;

1.计算下列微分形式的外微分: (1)1-形式=2xydx+x2dy; (2)1-形式a= cos ydx-sin- xdy; (3)2-形式=66zdx dyxydx- adz

第一题 阶跃响应曲线A和D都有缓慢衰减的爬行现象这是由附近存在零点的慢实数极点所导 致,所以相应的传递函数为(3)或(4)。为了区分它们

Unit 6 Day-to-day work 6.1 Talking about your work (1)Listening Listen to Ana Campos talking about her working hours. Are these statements true (T)or false(F)? 1 She starts works at 7.30. 2 She finishes work at 4.00 3 She has lunch at 12.00. 4 She has one hour for lunch. 5 She works a 40-hour week

wning is a leading preventable cause of unintentional been found to be clinically significant. The most important morbidity and mortality. Although this chapter focuses factors that determine outcome of drowning are the duration on treatment, prevention is possible, and pool fencing has and severity of the hypoxia

一、选择题(共3题3分) 1.1分(4439) 4439银锌电池ZnZn2gg的(n21n)=-0.761V,(Ag1Ag)=0.799V,则该电池的标准电动势E是:() (A)1.180V (B)2.359V (C)1.560V (D)0.038V

Discrete-Time Signals: Time-Domain Representation Signals are represented as sequences of numbers, called samples Sample value of a typical signal or sequence denoted as x[n] with n being an integer in the range-∞≤n≤∞ ·x[n] defined only for integer values of and undefined for non-integer values