一．仪器启动 按下面板上的电源按钮，电源接通。先闪烁显示 “WELCOME” 2 s，再闪烁显示仪器型号“F10DDS” 1 s。之后根据系统功能中开机状态设置，进入“点频” 功能状态，波形显示区显示当前波形“～”。频率为 10.000 000 00kHz；或者进入上次关机前的状态

1 . A reaction has the stoichiometric equationA+B=2R. What is the order of reaction? 2. A reaction with stoichiometric equationhas the following rate expressionWhat is the rate expression for this reaction if thestoichiometric equation is written as A+2B=2R+S?A B R S2

如图所示为裁纸板的简图。 纸板ABCD放在传送带上，并 以匀速v1=0.05 m·s-1与传送带 一起运动，裁纸刀固定在刀架 K 上 ， 刀 架 K 以 匀 速 v2=0.13 m·s-1沿固定导杆EF运动，试问 导杆EF的安装角θ应取何值才 能使切割下的纸板成矩形?

Solid Angles Gauss’ Law Conductors Poisson’s Equation Laplace’s Equation Uniqueness Theorem Images

The educator’s job is not increase motivation per se(本身）but to discover, initiate, and sustain student’s motivation to learn, and to engage in activities that lead to learning

Carbon’s ability to form strong covalent bonds to other carbon atoms is the single property of the carbon atom that — more than any other—accounts for the existence of a field of study called organic chemistry. Carbon’s ability to form as many as four strong bonds to other carbon atoms, and to form strong bonds to hydrogen, oxygen, sulfur, and nitrogen atoms as well

1 作直线运动的物体，其运动方程为: ，式中x的单位为m，t 的单位 为s，速度单位为m·s

1. 根据氢原子的1s轨道的波函数表达式，证明它是归一化波函数，并据此写出氦离子(He+)的1s轨道波函数

一、名词解释 VVM；Yx/s；qs ；YP/S ；μ；KL；kLa；kd；D；Dcrit；Ks；Km；YP/X；μmax；qCO2；qO2；td； YATP；补料分批发酵；临界氧浓度；呼吸商； 过滤效虑；雷诺准数；比热死速率常数（K）； 活塞流反应器（PF）；连续式全混流型反应器（CFSTR）；返混；连续培养；高密度培养；

chanos (Forsskal) to formalin-killed Vibrio vulnificus I.S. Azad*, J. Syama Dayal, M. Poornima, S.A. Ali Central Institute of Brackishwater Aquaculture, 75 Santhome High Road, R.A. Puram, Chennai 600028, India Received 26 May 2006; revised 16 September 2006;