【单选题】【消耗次数:1】
1.Everyone is working harder and living a happier life now, ____ ?
aren’t they
aren’t we
isn’t it
isn’t one
参考答案:
复制
纠错
相关题目
【单选题】 Eeveryone is working harder and living a happier life now, _________ ?
①  arent they
②  arent we
③  isnt it
④  isnt one
【单选题】 Middle school students aren’t ______ to smoke.
①  A.ordered
②  B.prepared
③  C.allowed
④  D.made
【单选题】 It’s a [填空]. It isn’t an [填空].
①  cherry,apple
②  orange,cherry
③  apple;cherry
④  egg,cake
【单选题】 There are [填空] books in your bag. But there aren’t [填空] pens in it.
①  some, some
②  any ,some
③  some, any
④  any,any
【单选题】 Isn’t it about the time you __________ to do morning exercises?
①  began
②  begin
③  should begin
④  have begun
【单选题】 Tom isn’t outgoing. Neither [填空] Mary.
①  does
②  is
③  do
④  did
【单选题】 Anna isn’t [填空] good at English as his sisiter.
①  so
②  more
③  much
④  much more
【单选题】 The book ______ you want is on the desk.Which of the following isn’t right?
①  that
②  which
③  /
④  it
【单选题】 Now Mike isn’t here. He ________ Mr. Green’s. Perhaps he ________ back in a few minutes.
①  went to ; is coming
②  has gone to ; will come
③  has been to ; will be
④  is going to ; has come
【单选题】 Now Mike isn’t here. He _______ Mr. Green’s. Perhaps he _______back in a few minutes.
①  went to ; is coming
②  has gone to ; will come
③  has been to ; will be
④  is going to ; has come
随机题目
【单选题】 场效应管主要优点()
①  输出电阻小
②  输入电阻大
③  是电流控制
④  组成放大电路时电压放大倍数大
【单选题】 放大电路中引入负反馈后,下列说法错误的是(   )。
①  能提高放大倍数的稳定性
②  能增大通频带
③  能减小信号源的波形失真
④  能改变输入输出电阻
【单选题】 差分放大电路由双端输入变为单端输入,差模电压放大倍数()。
①  增加一倍
②  减小一半
③  不变
④  按指数规律变化
【单选题】 晶体管处于截止状态时,发射结和集电结的偏置情况是()。
①  发射结反偏,集电结正偏
②  发射结、集电结反偏
③  发射结、集电结均上偏
④  发射结正、集电结反偏
【判断题】 扩展频带。
①  正确
②  错误
【判断题】 三端集成稳压器7812输出电压+12V。
①  正确
②  错误
【判断题】 在本征半导体中加入三价元素可形成P型半导体。
①  正确
②  错误
【判断题】 放大电路必须加上合适的直流电源才能正常工作。()
①  正确
②  错误
【判断题】 稳压电路。
①  正确
②  错误
【判断题】 凡是运算电路都可利用“虚短”和“虚断”的概念求解运算关系。()
①  正确
②  错误