电路如图所示，设MOS管的参数为VTN = 1V，[img=113x25]1802d7cc805bee1.jpg[/img]和l=0，其他参数如图示。若要求MOS管的静态值IDQ = 0.5mA，VDSQ = 6V，那么电路中的电阻Rd =_________，Rg2 =_________。[img=200x207]1802d7cc8a2b858.jpg[/img] A: 8 kW，40 kW B: 10 kW，60 kW C: 10 kW，40 kW D: 8 kW，60 kW E: 8 kW，50 kW

空调机组额定冷量kW；额定功率kW（） A: 21.5 B: 6.95 C: 7.5 D: 8 E: 9.6

“Do you mind ______?” “Go ahead.” A: turning on the fan B: if i turn on the fan C: to turn on the fan D: turn on the fan

“Do you mind（）?”“Go ahead. I don’t mind.” A: turning on the fan B: I turn on the fan C: if I turn on the fan D: to turn on the fan

共轭酸碱对的酸解离常数Ka和碱解离常数Kb之间的关系是 A: Ka/Kb=Kw B: Ka+Kb=Kw C: KaKb=Kw D: KaKbKw=0

How many steps are required to develop a good measurement according to Dr. Fan Daisy? A: 4 B: 9 C: 10 D: 8

IPv6地址 1080:0:0:0:8:0:0:417A可以简写为 A: 1080::8::417A B: 1080::8:0:0:418A C: 108::8:0:0:419A D: 108::8::417A

图示电路参数为VDD＝VSS＝5V，Rd＝5kΩ，RL＝5kΩ。场效应管参数Kn＝3mA/V2，λ＝0。若IDQ＝0.37mA，那么电路的小信号电压增益约为_________，输出电阻约为__________。[img=289x146]1802d7ccb05a70f.jpg[/img] A: 5.25，5kW B: -5.25，2.5kW C: -5.25，5kW D: 5.25，2.5kW E: 1.85，2.5kW

The air-conditioner is running in the winter and to be stopped, we should（） A: close Fan and Humidifier at the same time B: firstly close Fan and then close humidifier immediately C: firstly close humidifier and then close Fan immediately D: firstly close humidifier and then close Fan after 30 second

中国大学MOOC: RC串联电路与电压为8V的恒压源在t = 0瞬间接通，如图1所示，接通前uC(0_)= 0，电阻分别为1 kW，6 kW，3 kW 和4 kW 时得到4条uC(t)曲线如图2所示，则6kW电阻所对应的uC(t)曲线是 ( )。【图片】