What is marketing? To attract and retain customers at a profit (Drucker, 1999) To establish, develop and commercialise long-term customer relationships so that the objectives of the parties involved are met (Gronroos, 1989)

Diffusion: Read Plummer Chap. 7, sections 7.1-7.4,, 7.53, 7.5.8 Show that c(zt) Wroexpfzla)I,with a=2VDf, is a solution to Fick's second law of diffusion. ac(z, t) dc(zt) 2. a) What is the intrinsic carrier concentration in Si at 1100 C? b) Calculate the effective diffusivity (including first-order, charged-vacancy corrections)for As impurities in Si at 1100 C for two cases: 1)CAs=10 cm and ii)

一、选择题(20分,每小题2分) 1离心泵的调节阀开大时, A吸入管路阻力损失不变 B泵出口的压力减小 C泵入口的真空度减小 D泵工作点的扬程升高

一、选择题(共6题30分) 1.5分(2170)2170 在下列两题中,选择你认为正确的答案:(1)在某恒定温度下,二元物系的p-x图如下所示,则在x处组分A的活度系数是:() (A)=CH/CE (B)=CH/CD (C)7A-CH/CG

一、选择题(共1题5分) 1.5分(7376) 7376介电常数的量纲是:() (A)LM'Tr2 (B) (D) TI2

一、选择题(20分,每题2分) 1流体流动时的摩擦阻力损失h所损失的是机械能中的项。 A位能 B静压能 C总机械能 D动能

一、选择题(共10题20分) 1.2分(3673)3673在浓度为c1的HCl与浓度c2的BaCl2混合溶液中离子迁移数可表示成:() (A)(H [()+()+()] (C)(H') [cA(H )+(Ba2)+()]

一、选择题(20分,每小题2分) 1离心泵的调节阀开大时, A吸入管路阻力损失不变 B泵出口的压力减小 C泵入口的真空度减小 D泵工作点的扬程升高

一、Textbook S.K. Mitra, Digital Signal Processing-A Computer-Based Approach, Third Ed

2. 1 Saying what you do Fill in the blanks with a or an supervisor 6 manager 7 (2)Ⅴ tabular Look at the picture and label them with the job titles in the box ales manager