【判断题】数控车床的特点是Z轴进给1mm,零件的直径减小2mm
【单选题】已知某输电线路的总电阻为 1Ω ,流过线路的总电流为 10A ,则线路上损耗的功率为 ( ) 。
【单选题】已知电源电源内阻为 4欧姆,线路和负载总电阻为10欧姆,电路电流为5安,则电源端电压为() 。
【简答题】Persuasive speeches on questions of ____ judge whether something is good or bad, right or wrong, fair or unfair.
【简答题】A.unconvincing. B.persuasive. C.disgusting. D.praiseworthy.
【简答题】已知一条单相配电线路,电源端电压为220V,负载电流为100A,线路总电阻为0.2Ω,则负载端电压为( )V。
【单选题】Lincoln was invited to speak at the National Soldiers Cemetery because he was __________
C.
President of the country