【判断题】【消耗次数:1】
结构钢的淬透性,随钢中碳含量的增大而增大。
正确
错误
参考答案:
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相关题目
【判断题】 随含碳量提高,碳素结构钢的强度、塑性均提高。
①  正确
②  错误
【单选题】 钢的淬透性主要决定于其()。
①  碳含量
②  合金元素含量
③  冷却速度
④  过冷度
【判断题】 钢的淬透性与其实际冷却速度无关。
①  正确
②  错误
【单选题】 下列碳素结构钢中含碳量最高的是( )。
①  Q235-AF
②  Q215
③  Q255
④  Q27524
【判断题】 凡能使钢的C曲线右移的合金元素均能增加钢的淬透性。
①  正确
②  错误
【判断题】 低合金高强度结构钢与碳素结构钢比较,低合金高强度结构钢的综合性能好( )。
①  正确
②  错误
【判断题】 低合金高强度结构钢与碳素结构钢比较,低合金高强度结构钢的综合性能好( )。
①  正确
②  错误
【单选题】 碳素结构钢的Q235C表示( )。
①  屈服强度为235N/mm2,C级沸腾钢
②  屈服强度为235N/mm2,C级半镇静钢
③  屈服强度为235N/mm2,C级镇静钢
④  屈服强度为235N/mm2,C级特殊镇静钢
【单选题】 40Cr钢的碳含量范围是()。
①  约40%
②  约4%
③  约0.4%
④  约0.04%
【单选题】 纵向附着系数随轮胎滑动率的增大而_________。
①  增大
②  减少
③  先增大后减少
④  先减少后增大
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【单选题】 A: Im keen on researching my family history. B: [填空]
①  I do too.
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【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】 A: I thought you were working until 6:30. B: [填空], but we finished our meeting at 5:30 and were let go.
①  I tried to
②  I hoped so
③  Id love to
④  I was supposed to
【单选题】 A: Robbie, well go fishing soon, and well take your dad with us. B: Im ready, Grandpa. [填空].
①  Enjoy yourselves
②  You name the day
③  You cant miss it
④  Take your time
【单选题】 A: Would you like to go to the cinema? B: If I can finish my homework. A: [填空]
①  Why bother?
②  Oh, come on!
③  Then what?
④  Thanks a lot.
【单选题】 A: Hello, [填空] Can I help you? B: Yes, this is Lin Xiaoyan. Could I speak to Mark Strong, please?
①  Who are you?
②  Whos speaking?
③  Im the secretary.
④  ABHK Bank.
【单选题】 A: Long time no see, Mary. B: [填空] A: OK.
①  Well, how have you been?
②  How do you do?
③  Nice to meet you.
④  Fancy meeting you here.
【单选题】 A: Hi, my name is Lin Xiaoyan. Its nice to meet you. B: Im Jack. [填空]
①  You know?
②  How are you, Lin Xiaoyan?
③  Its pleasure to meet you, Lin Xiaoyan.
④  Youre busy, arent you?
【单选题】 A: Well, its time for us to go. B: [填空].
①  Nice to meet you
②  Have a nice day
③  I wish you a pleasant journey
④  I hope you will soon feel better
【单选题】 A: I need to buy a wedding gift for Jane. B: Should we stop at the shopping center? A: [填空]. The weddings not until next week, but I wont have time later to get them anything.
①  Wont be necessary
②  Its your call
③  I suppose so
④  If you insist