【单选题】( ) is one of the oldest and simplest forms of modulation used for analog signals.
【单选题】The modulation mode on VHF Radiotelephone is ______.
A.
Frequency/Phase Modulation
B.
Single Side Band Modulation
【单选题】In the modulation style. of PSK, if a kind of Modem's modulation rate is 3200baud and it's phase is 8, what is the data transfer rate of this kind of Modem ?
【判断题】Frequency modulation and phase modulation are called angle modulation. ( )
【简答题】某地一个手工劳动行业由100个家庭作坊组成,由于某种特殊原因,不能再新设作坊。产品在一个竞争性市场出售,只能是价格的接受者。劳动可以在各作坊间自由流动,每个作坊的日生产函数都是 Q=30L-0.1L2 投入的劳动由男工和女工组成,具有相同的生产能力,但是他们的日供给函数不同 M=40WM=3200 F=10WF+200 M和F分别是每日使用男工和女工的数量,WM和WF分别是男工和女工的日工资。产品...
【单选题】由于不动产的( )特性使得不动产市场具有地区性,不动产市场供给和需求局限于一定的空间范围内。
【判断题】Angle modulation includes frequency modulation and phase modulation.