判断题 若流经两电阻是同一个电流，就是串联。

问答题 导线测量外业工作如何进行？

多项选择题 The teachers' development generally goes through three stages which are（ ）.A.taking teaching as their career (the need of survival)B.taking teaching as a sidelineC.taking teaching as their cause (the need of life)D.taking teaching as their profession (the need of lives)