集成有源滤波器的组成,一般由集成电路和()
A、电感与电容
B、电容与电阻
C、电感与电阻
D、电容与变压器
参考答案:B
So unusually _____ that many students call her a "fairy". [ ]
A. she behaves
B. behaves she
C. does she behave
D. does she behaves
______≈82万,括号里填出最大的自然数是824999,最小的自然数是815000.______.(判断对错)