题目

Recently I overheard a father and daughter in their last moments together at the airport．The airline had announced her departure and standing near the security gate，they hugged and he said，“I love you．I wish you enough” She in turn said，“Dad，our life together has been more than enough．Your love is a11 I ever needed．I wish you enough，too，Dad．”They kissed and she left He walked over toward the window where I was seated Standing there I could see he wanted and needed to cry．I tried not to disturb his privacy, but he welcomed me in by asking,“Did you ever say good某同学希望通过比较电路中不同位置的电流表的读数来研究串联电路的电流规律．所接电路图如图所示，闭合开关后，两电流表指针偏转情况如图．（1）电流表A2的读数是：______．（2）另一同学连接好的电路如图所示．他认为：若两灯的亮度一样，说明串联电路中电流处处相等，若两灯的亮度不同，则说明串联电路中电流处处不相等．他的猜想：______（填“正确”或“错误”）连接电路后，两灯泡都亮，由于连线较乱，一时无法确定电路是串联还是并联，以下两种简单判断方法是否可行？请你在表中空格填写“可行”或“不可行”．方法操作现象结论方法是否可行方法1把其中一灯泡从灯座中取下另一灯熄灭两灯一定是串联______方法2把任意一根导线断开两灯熄灭两灯一定是串联______