解答计算题需读、看、联三步.第一步,读题目,要读到对题目条件心中有数,用时能随时从心里提出;第二步,看求量,确定被研究对象属于力、热、光、电、磁、能量哪一板块的内容;第三部,找联系,找待求量和已知条件之间的联系;找已知条件和已知条件之 Answering the calculation questions requires three steps: reading, reading, and joining. The first step is to read the questions, read the answers to the questions, and use them from time to time to ask questions; the second step is to look for quantities and determine that the objects under study belong to forces. The contents of heat, light, electricity, magnetism and energy which are the plates; the third part, to find links, to find the link between the demand and known conditions; to find known conditions and known conditions