【单选题】实验测得有源二端网络在关联参考方向下的外特性曲线如图 4.7 所示,则其戴维南等效电路的参数为( )。
B.
U O C = 2V R i = 0.5 Ω
D.
U O C = - 2V R i = 2 Ω
【单选题】实验电路如图1所示,测得有源二端线性网络的外特性曲线如图2所示,则该网络的戴维宁等效电压源的参数Us和R0分别为( )。
【简答题】Thank You Email After an Interview Dear Ms. Valentine, Thank you once again for taking the time to interview me on Thursday. It was a ( 1 ) to meet the person that handles the behind the scenes elem...
【单选题】实验电路如图 1 所示,测得有源二端线性网络的外特性曲线如图 2 所示,求该网络的 诺顿 等效电路 中的短路电流和等效内阻 。
【单选题】实验电路如图 1 所示,测得有源二端线性网络的外特性曲线如图 2 所示,则该网络的戴维宁等效电压源的参数 U S 和 R 0 分别为 ( ) 。 (a)2V , 2 W (b)4V , 0.5 W (c)4V , 2 W
【多选题】Complete the dialogue with the sentences below : 根据句意,将单句填恰当的地方使语句完整。 Tom: What are you going to do this Sunday? Peter: I have no idea. (36)_____ Tom: We’re going to play football with our friends. (3...
E.
You must come before two.
【单选题】在下面关于PC机中的总线系统的叙述中,错误的是______。
A.
总线的带宽指的是单位时间内总线上可传输的数据量
C.
总线的工作频率是指用于协调总线上各种操作的时钟信号的频率
D.
总线带宽=总线位宽×总线工作频率(MB/s)
【简答题】--Would you like to go to lunch together with me? --____ love to, ____ I have to go to the station to meet my mother.
【单选题】Would you like to go for a picnic with us? ______. What time are we going to meet?