If the spectrum of a signal is discrete and periodic, then the corresponding time domain signal is_____. ( ) A: continue and periodic B: continue and aperiodic C: discrete and periodic D: discrete and aperiodic

A capital budget is aperiodic business plan that includes a coordinated set of detailed operatingschedules and financial statements.

In the following basic forms of the transition process, which is stable?( ) A: Attenuation oscillation process and aperiodic divergence process B: Monotone process and equal-amplitude oscillation process C: Divergent oscillation process and equiamplitude oscillation process D: Attenuation oscillation process and monotone process