一、单项选择题(本大题共20小题,每小题2分共40分,错选、多选、未选均不得分) 1、在液压传动系统中,油泵为【】 A、动力元件B、执行元件C、控制元件D、辅助元件

一、单项选择题(本大题共20小题,每小题2分,共40分,错选、多选、未选均不得分) 1、在液压传动系统中,油泵为【】 A、动力元件B、执行元件C、控制元件D、辅助元件

一、选择题(共40分,选择一个正确答案,将答案前的字母填在答卷纸上) 1.OH的共轭酸是: (a)H;(B)H2O;(C)H3O+;D)2 2.若动脉血的pH为7.40,[HCO3]=0.024mol/L,已知碳酸的 pKa1=6.38,pKa2=10.25,则[H2CO3]的浓度为: (A)2.3×10mol/L; (B)2.3×10mol/L; (C)4.6×10mol/L; (d)4.6×10-mol/

一、选择题:(单项选择题,将合适的答案填在括号内)(40分) 1.称样量约为0.2g,要求称量相对误差为0.1%,应选用哪种天平。 (A)万分之一的分析天平; (B)十万分之一的微量分析天平; (C)千分之一的工业天平

equipment, and to Dr. G. E. R. Deacon and the a residue on each chain every 3.4 A. in the z-direc- captain and officers of R. R.S. Discovery II for their tion. We have assumed an angle of 36between part in making the observations. at residues in the same chain, so th he 1Young, F. B., Gerrard, H., and Jevons,., Phil Mag., 40, 149 structu on each chain, that

一、选择题 A型题 1.d2.c3.e4.e5.d6.a7.e8.c9.c10.b11.d12.a 13.b14.a15.d16.e17.e18.e19.c20.c21.b22.d 23.c24.c25.c26.d27.e8.c29.c30.c31.b32.b 33.c34.b35.c36.d37.e38.e39.c40.c41.b42.c

Preface During the last 40 years, consumer choice has been trans velopment in the production, distribution and retailing of food improvements in the design and equipment of the domestic kitchen have facilitated a major change in our lifestyle. Perhaps the most striking development is the marketing of a wide and

Microelectronics Processing Technology Spring Term, 200. Quiz 1 90 min/90 points total March 19 2003 Note: Be brief and relevant in your answers, and use sketches. Show your work. k=1.3810-23J/K=8.6210-eV/K 40 1. Film deposition, CVD )Discuss briefly what factors affect the microstructure a film grown on a substrate

一、单项选择题(本大题共20小题,每小题2分共40分,错选、多选、未选均不得分) 1、在液压传动系统中,油泵为【】 A、动力元件B、执行元件C、控制元件D、辅助元件

1、外科病人，低钾血症，静脉补钾的浓度每升输液中 不宜超过 40mmol/L，氯化钾 3g，3 0 /00。（填出其中之 一即可）