A.
For any node in the circuit, the algebraic sum of currents entering a node is zero. 任一时刻在电路的任一节点上,所有支路电流的代数和恒等于零
B.
For any loop in the circuit, the algebraic sum of currents entering a node is zero. 任一时刻在电路的任一回路,所有支路电流的代数和恒等于零
C.
For any node in the circuit, the algebraic sum of all voltages around a closed path(or loop) is zero. 任一时刻,任一节点各电压的代数和恒等于零
D.
At any time, the algebraic sum of all voltages around a closed path(or loop) is zero 任一时刻,沿任一回路各段电压的代数和恒等于零。