【单选题】进行串联超前校正后,校正前的穿越频率ω c 与校正后的穿越频率 的关系,通常是( )
【判断题】M achine element is a basic element in kinematics analysis.
【判断题】Livestock is only used for providing meat.
【单选题】进行串联超前校正后,校正前的穿越频率ωc与校正后的穿越频率ωc的关系,通常是( )。
【单选题】History is ( ) a subject that only lets us know something in history it also tells us a lot of truth.
【单选题】What is NOT a basic element of plot?
B.
exposition or introduction
F.
resolution or denouement