【简答题】June and I were both poor when we were young. At that time, June always said, “ If I got rich, I would buy a bigger apartment and a new wardrobe(衣柜).” Of course, she said this just for fun and she nev...
【简答题】( 1 )电路如图 1 所示, 电压 U 、 电流 I 的方向已标注在图中,且 I= -1A,则图中对于支路,() 。 a . U 、 I 为关联参考方向,电流 I 的实际方向是自 a 流向 b 。 b. U 、 I 为关联参考方向,电流 I 的实际方向是自 b 流向 a 。 c. U 、 I 为非关联参考方向,电流 I 的实际方向是自 a 流向 b 。 d. U 、 I 为非关联参考方向,电流 ...