【简答题】These sentences are about the reading. Complete them with the target words and phrases in the box.
【判断题】当把P型半导体和N型半导体结合在一起时,在两者的交界处形成一个PN结。
【简答题】These sentences are about the reading. Complete them with the target words and phrases in the box.
【简答题】These sentences are about the reading. Complete them with the target words and phrases in the box.
【简答题】These sentences are about the reading. Complete them with the target words and phrases in the box.
【单选题】U 盘是采用 作为存储器的移动存储设备。