【单选题】根据材料的特征,我们现在所处的时代是( )
【单选题】晶闸管导通后,通过晶闸管的电流决定于()
【单选题】_______ the days going on, the weather is becoming hotter and hotter.
【简答题】If the weather permits, we are going to set out tomorrow morning.
【简答题】--What's the weather like tomorrow? --The radio says it is going to be even _______.
【单选题】晶闸管导通后,通过晶闸管的电流决定于( )。
【单选题】晶闸管导通后,通过晶闸管的电流决定于( )
【单选题】晶闸管导通后通过晶闸管的电流决定于()。