将下列( A,B,C,D )哪个代码替换下列程序中的【代码】不会导致编译错误。 A . public int f(){return 100+M;} B . int f(){return 100;} C . public double f(){return 2.6;} D . public abstract int f(); interface Com { int M = 200; int f(); } class ImpCom implements Com { 【代码】 }
【简答题】A resistor is a two- terminal electrical or electronic component that resists an electric current. Resistors may be classified as fixed or variable in their type and also as linear and nonlinear.