请填入连接词:that,but,who,whereby,where,whence,as,than,which 1.There is no material will deform(形变)more or less under the action of forces . 2.Ohm’s law can be written as V = IR V represents voltage, I — current and R — resistance . 3.The phenomenon is analogous to striking(敲)a bell(铃)a sharp mechanical blow(猛击)with a hammer(锤子), the origin of the term “ringing(振铃) .” 4.Electromagnetic induction(感应)is the means(方法) nearly all the world’s electric power is produced . 5.All the user has to do in order to access the records is start a web browser(网浏览器)and visit the web site(网址). 6.The only thing must be done is to measure the voltage across the capacitor(电容器). 7.β is the amount of amplification(放大)of a transistor is capable. 8.A system which provides more energy at the output is given at the input is said to be active . 9. We can now solve such differential(微分)equations occur in physics .