【单选题】图示电路中,已知电流 I1=1A, 则电流 I 为( ) A .
【单选题】图示电路中,已知: ,则电流 I为( )。
【单选题】图示电路中,已知电流I1=1A,则电流 I为( )。
【单选题】图示电路中,已知电流I1=6A ,则电流I 为 ( ) 。
【单选题】The housemaster was strict. He required that we ______ television on weeknights. [ ]
【单选题】The housemaster was very strict. He asked that we television on week nights.
D.
should not have watched
【单选题】图示电路中 , 已知电流I1 =6A, 则电流I 为 ( ) 。
【单选题】It’s not polite to m ake fun of others.
【判断题】在钻井过程中,转盘把发动机的动力通过方补心传给方钻杆、钻杆、钻铤和钻头、从而实现进尺,钻出井眼。()