NPN型晶体管处于放大状态时,各极电压关系是()。
A.UC>UE>UB
B.UC>UB>UE
C.UC<UB<UE
D.UC<UE<UB
参考答案:B
_______ about wild plants that they decided to make a trip to Madagascar for further research.
A.So curious the couple was
B.So curious were the couple
C.How curious the couple were
D.The couple was such curious
唐朝三省六部制中的三省是指( )。
A.尚书
B.中书
C.门下
D.总督