电路如图所示，已知当Us=20V时，Uab=10V，当Us=0V时，Uab=（）V。[img=397x276]1803bc408f9f382.png[/img] A: 5 B: -5 C: 10 D: -10
电路如图所示，已知当Us=20V时，Uab=10V，当Us=0V时，Uab=（）V。[img=397x276]1803bc408f9f382.png[/img] A: 5 B: -5 C: 10 D: -10
按键的机械抖动时间参数通常是（ ）。 A: 0us B: 5-10us C: 5-10ms D: 40-50ms
按键的机械抖动时间参数通常是（ ）。 A: 0us B: 5-10us C: 5-10ms D: 40-50ms
How many reasons has the third video in (9.4.1) give us for stop eating suga A: 5 B: 15 C: 25 D: 10
How many reasons has the third video in (9.4.1) give us for stop eating suga A: 5 B: 15 C: 25 D: 10
How many reasons has the third video in (9.4.1) give us for stop eating sugar? A: 5 B: 15 C: 25 D: 10
How many reasons has the third video in (9.4.1) give us for stop eating sugar? A: 5 B: 15 C: 25 D: 10
已知电路如图a所示，US=20V，IS=1A，R1=R2=10Ω，R3=R4=5Ω，试用戴维南定理求解电流I。
已知电路如图a所示，US=20V，IS=1A，R1=R2=10Ω，R3=R4=5Ω，试用戴维南定理求解电流I。
Note 5: An __________ out of the US may be necessary
Note 5: An __________ out of the US may be necessary
中国大学MOOC: 图示电路中，已知R1=R2=10Ω，R4=R5=20Ω，R3=5Ω，Us=15V，则电流 I为（ ）A。【图片】
中国大学MOOC: 图示电路中，已知R1=R2=10Ω，R4=R5=20Ω，R3=5Ω，Us=15V，则电流 I为（ ）A。【图片】
Studying the humanities makes us (5) (5) with the language of emotion and the creative (6) (6).
Studying the humanities makes us (5) (5) with the language of emotion and the creative (6) (6).
由叠加原理可求得使下图所示电路中，Uab=0的US值为（）V。 A: 10 B: 8 C: 5 D: 3
由叠加原理可求得使下图所示电路中，Uab=0的US值为（）V。 A: 10 B: 8 C: 5 D: 3
People ______ between 10 to 20 should be named us "young people"
People ______ between 10 to 20 should be named us "young people"