叠加定理是线性电路的基本定理,内容是复杂电路中某一支路中的()等于各个电压源(或电流)单独作用时在该支路产生的电流的代数和。
参考答案:电流
I didn't understand ______ so I raised my hand to ask. [ ]
A.what my teacher says
B.what does my teacher say
C.what my teacher said
D.what did my teacher say
“Do you want to insure it ?”的汉语意思是()。