电路如图所示,根据工程近似的观点,a、b两点间的电阻值约等于( )
A: 101kΩ
B: 301kΩ
C: 1kΩ
D: 100kΩ
E: 201kΩ
A: 101kΩ
B: 301kΩ
C: 1kΩ
D: 100kΩ
E: 201kΩ
举一反三
- 电路如图所示,根据工程近似的观点,a、b两点间的电阻值约等于( )[img=312x188]17d606377a3c435.png[/img] A: 101kΩ B: 301kΩ C: 1kΩ D: 100kΩ E: 201kΩ
- 电路如图所示,根据工程近似的观点,a、b两点间的电阻值约等于()。 A: 1kΩ B: 101kΩ C: 200kΩ D: 201kΩ
- 离散信号f1(k)和f2(k)的如图X3.4所示,设y(k)=f1(k)*f2(k),则y(2)等于( )。<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202011/75b74a7b8a93440ab7a324a9348b199e.png" /> A: 3 B: 5 C: 2 D: 1
- 理想运算放大器的主要特征为 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/8ec216c374814f48ad60b00627bee3d6.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/b36e9dfc39a748b1b652e9b3c1a762ed.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/2a93dfdbeb804030ac0da51eed08943e.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/a01ee7baba84489f886c43cc5d5c5169.png" />
- 正六边形的尺寸标注正确的是( )。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/51b59d5c82e7484292873ae39ff944fd.jpg"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/dad8740e848246faae714a02eb3e79f6.jpg"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/5d7eebc6e83247cd921d440438341839.jpg"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/ef49ee3205524fb5b9fc6c643aef5bad.jpg">