【单选题】My efforts finally paid __________ when they called me in for an interview.
【简答题】My
efforts finally _____________ when they called me in for an interview.A. pay off B. paid off C. came out D. come out
【简答题】设调制信号为单一频率信号uΩ=UΩcosΩt,未调载波电压为u c =U c cosω c t,调制度为m,则AM波的表达式为()。
【简答题】在并联电路中某一支路的阻值大,则该支路的电流 ,其消耗的电功率也 。
【判断题】通过textarea控件可以创建多行文本输入框,cols属性用于设置多行文本输入框每行中的字符数