习题是教材中不可缺少的一个重要部份,它有助于学生验证、消化和巩固所学的基本理论,并提高其分析能力和计算能力。因此习题应同实验一样,作为对学生能力培养的一种基本训练而加以重视。在六十年代以前计算电路问题主要依靠手算,所依赖的计算工具仅有数学用表和计算尺,因而能被计算的电路规模不大,且计算的速度较慢,它大大限制了电路理论在实际工作 Exercises are an indispensable part of the textbook. It helps students to verify, digest and consolidate the basic theories they have learned and to improve their analytical and computational skills. Therefore, exercises should be the same as the experiment, as a basic training of students’ ability to pay attention to. Calculating circuit problems prior to the 1960s mainly relied on manual calculations, and the only computational tools relied upon were mathematical tables and slide rules, so that the circuits that could be computed were small and computationally slow, which greatly limited circuit theory In actual work