【单选题】Why did the customer ask the waiter to bring him another steak?
A.
Becasue the steak offered was not the one she ordered.
B.
Becasue the steak offered was rare.
C.
Becasue the steak offered was medium.
【简答题】图所示为直流电路,若使电压U O 不受电压源U S 的影响,试确定受控源控制系数α的值。
【单选题】How would you like your steak?
C.
I'd like rice with my steak.
D.
What kinds do you have?
【简答题】受控电压源的()值受控;受控电流源的()值受控。
【判断题】分析电路时,一个受控电流源与一个电阻并联构成的电路可等效变换为一个受控电压源与一个同阻值电阻的串联。
【判断题】一个受控电压源与一个电阻串联构成的电路可等效变换为一个受控电流源与一个同阻值电阻的并联。