【单选题】在明朝,主管审判的中央司法机关是( )。
【单选题】The dc bias circuit has RB=200kΩ , RC=1kΩ and VCC=15V. If the transistor has β=100. the transistor works in _______ region.
【判断题】方阵A所有特征值的乘积等于方阵A的行列式的值。
【简答题】A transistor has three electrodes, the emitter, the base, and the collector.
【单选题】有关配合物的异构现象说法正确的是( ) 。
A.
配合物化学组成相同,但原子间连接方式或空间排列方式不同而引起配合物结构性质不同的现象
【单选题】The dc bias circuit has RB=200kΩ , RC=1kΩ and VCC=15V. If the transistor has β=300. the transistor works in _______ region.