标题: An electric heater draws 10 A from a 120V line. The resistance of the heater ... [打印本页] 作者: 李老师 时间: 2017-3-13 13:53 标题: An electric heater draws 10 A from a 120V line. The resistance of the heater ... An electric heater draws 10 A from a 120V line. The resistance of the heater is _____.
A. 1200 B. 120 C. 12 D. 1.2
正确答案：C 满分：2 分
2. In the root-locus method the actual time response of a system can be obtained by means of _____.
A. the inverse Fourier transformB. the inverse Laplace transformC. the Fourier transformD. the Laplace transform
正确答案：B 满分：2 分