【单选题】【消耗次数:1】
12.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】 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】 12.You can’t imagine what great trouble they have ____the problem____.
①  to solve; being talked about
②  solving; discussing
③  to solve; to talk about
④  solving; being discussed
【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.
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①  正确
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①  正确
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【单选题】 输入端子接线应注意切勿将外接电源加到交流型 PLC 的内藏式直流电源的输出端子上。
①  正确
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①  正确
②  错误
【单选题】 洗涤时,离合器的()带动波轮正反向旋转。
①  外轴
②  内轴
【单选题】 脱水时,离合器的()带动脱水桶单方向旋转,将衣物甩干。
①  外轴
②  内轴
【单选题】 频率上下限设定功能是为了限制电动机的(),从而达到保护机械设备的目的而设置的。
①  转速
②  共振频率?
【单选题】 异步电动机的转矩是电机的磁通与转子内流过电流之间相互作用而产生的,在额定频率下,如果电压一定而只降低频率,那么磁通就过(),磁回路饱和,严重时将烧毁电机。
① 
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【单选题】 闭环控制系统又称为反馈系统系统。
①  正确
②  错误