—Yes, please. It lovely and nice.
A:sounds; sees
B:hears; turns
C:looks; smells
D:sounds; watches
如果a>0,a一定大于 1a 。
一同学在探究串联电路的电流规律时,按甲图连接好电路.闭合开关S后观察到两个电流表的偏转情况如乙、丙两图所示.下列说法正确的是( )