【单选题】【消耗次数:1】
You________return the book now. You can keep it till next week if you like.
cant
mustnt
neednt
may not
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相关题目
【单选题】 12.You _____ return the book now. You can keep it till next week if you like.
①  cant
②  mustnt
③  neednt
④  may not
【单选题】 How can you keep the machine ()when you are away?
①  run
②  to run
③  running
④  being run
【单选题】 17. If you _____ to me, you wouldn’t be in such trouble now.
①  listened
②  will listen
③  had listened
④  listen
【单选题】 A: Would you like to order now? B: [填空].
①  Im full now
②  But the price is high
③  Yes, Id like fish and soup
④  Its very kind of you
【单选题】 Please drop in whenever you can.. I’d like to keep _________ touch..
①  in
②  to
③  on
④  with
【单选题】 A: [填空], may I help you? B: Id like to book a single room, please.
①  Holiday Hotel
②  Speaking
③  Hey
④  Im Franco Rossi
【单选题】 You can take as many as you like because they are free of ____ .?
①  fare ?
②  charge ?
③  money ?
④  pay?
【单选题】 You can take any apple ____________ you like.
①  that
②  which
【单选题】 A: Hello, Jane, do you still remember you said youd like to see Yao Ming? B: [填空] A: He is here at our university now.
①  Yes, why?
②  Yes, so what?
③  No, I dont.
④  No, I dont like him.
【单选题】 Professor White is out of office right now. Can you leave a_________ or call later?
①  message
②  information
③  idea
④  advice
随机题目
【单选题】 压电式传感器是个高内阻传感器,因此要求前置放大器的输入阻抗()。
①  很低
②  很高
③  较低
④  无要求
【单选题】 信号,的频谱为,的频谱为,则的频谱为和的()。
①  乘积
②  卷积
③  之和
④  之差
【单选题】 表示传感器的静态输入与输出之间关系的实验曲线称为()。
①  幅频特性曲线
②  相频特性曲线
③  标定曲线
④  拟合直线
【单选题】 用常系数微分方程描述的系统称为()系统。
①  相似
②  不同
③  化学
④  线性
【判断题】 满足狄氏条件的周期信号可以用傅氏级数展成余弦函数之和的形式。()
①  正确
②  错误
【判断题】 灵敏度和权函数均描述了测试系统的动态特性。()
①  正确
②  错误
【判断题】 瞬态信号的频谱是离散的。()
①  正确
②  错误
【判断题】 信息不具有能量,信号也不具有能量。()
①  正确
②  错误
【判断题】 若金属电阻应变片的测试信号为直流电桥一个桥臂的输入,则电桥的输出为调幅波。()
①  正确
②  错误
【判断题】 若一选频滤波器的幅频特性是:在0~fc之间接近常数,在fc~∞之间急剧衰减。该滤波器为高通滤波器。()
①  正确
②  错误