請問電阻種類有哪幾種？
1. 定值電阻 
2. 可變電阻
3. 光敏電阻
4. 熱敏電阻
5. 壓敏電阻
6. 內阻
Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: 請問電阻種類有哪幾種？ ### Response: 1. 定值電阻 
2. 可變電阻
3. 光敏電阻
4. 熱敏電阻
5. 壓敏電阻
6. 內阻 