【单选题】
- I'm taking my driving test tomorrow. ___!
A. Cheers
B. Good luck
C. Come on
D. Congratulations
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答案
B
解析
暂无解析
相关试题
【单选题】
- ABC Company, may I help you? ____
A. I am Jack. May I speak to Miss Jenny?
B. This is Jack speaking. May I speak to Miss Jenny?
C. This is Jack speaking. Can I find Miss Jenny?
D. I am Jack. Can I find Miss Jenny?
【单选题】
- You have won the football game. Congratulations! ____
A. We are really lucky.
B. No one else could do it.
C. Oh, not really.
D. It's nice of you to say so.
【单选题】
- Excuse me, when will the 17:15 train arrive____
A. I don't tell you.
B. It's been delayed one hour.
C. You have to be patient.
D. Don't ask me.
【单选题】
- Is John there?____
A. Speaking.
B. I'm not Mary.
C. Who are you?
D. Mary is well today.
【单选题】
- Would you like to join us for Sunday dinner____
A. It's nice of you to invite me.
B. How about the food?
C. I like onion soup.
D. I'm sorry I missed the fun last time.
【单选题】
- Could you tell me where the nearest parking lot is?____
A. Don't ask me.
B. Parking is very difficult.
C. Sorry, I'm a stranger here.
D. Sorry, you can't park here.
【单选题】
- Sorry, ___
A. here you are.
B. take it.
C. it's taken.
D. never mind.
【单选题】
-What's this in English? ____
A. It's a map.
B. That is a map.
C. Yes, it's a map.
D. No, it isn't.
【单选题】
- I hear you got through your exam. Congratulations!____
A. No. I didn't do well enough.
B. Who told you that?
C. Thanks.
D. Yes, I got a good mark.
【单选题】
- Don't forget to come to my party this evening!___
A. I can't.
B. I won't.
C. I don't.
D. I will.
【单选题】
- Jim, please don't put your head out of the window on the bus. It's dangerous!___
A. Good idea.
B. Sorry, I won't do it again.
C. It doesn't matter.
D. It's good.
【单选题】
-How about going fishing?___, I have no patience for that.
A. Excuse me
B. Sorry
C. Pardon
D. Apologize
【单选题】
- Thanks for the lovely and delicious food______.
A. No thanks
B. Never mind
C. All right
D. My pleasure
【单选题】
- Haven't seen you for ages. Let's have a get-together next week._____
A. Great idea.
B. Welcome!
C. Yes, of course.
D. No, thanks.
【单选题】
- Do you mind if I switch off the radio? ______. Go ahead.
A. Never mind
B. No way
C. No, not at all
D. No, you'd better not
【单选题】
- Could I use your bike for a moment? ___
A. It's well.
B. It doesn't matter.
C. By all means.
D. I have no idea.
【单选题】
-How do you like the story?_______.
A. I'd like to read it
B. I like it very much
C. fine, thank you
D. It's very interesting
【单选题】
- I'll sorry to trouble you.______.
A. Don't say so
B. OK
C. It doesn't matter
D. That's fight
【单选题】
- We ordered 20 boxes of your products, but we have only got 19. - ____
A. You do not have to.
B. It does not matter.
C. We will send another tomorrow.
D. Nothing serious.
【单选题】
--Will you please give the note to him? _________.
A. Certainly, I'll give it to him
B. No, please not
C. Sorry, I don't
D. Yes, please do
【单选题】
- Thank you ever so much for your lovely gift____
A. Never mind
B. I'm glad you like it.
C. Please don't say so.
D. No, It's not so good.
【单选题】
- I'd like to invite you to dinner this Saturday, Mr. Smith.____
A. Oh, no. let's not.
B. I'd rather stay at home.
C. I'm sorry, but I have other plans.
D. Oh, no. That'll be too much trouble.
【单选题】
- Could you please open the window?____
A. I can't.
B. Go ahead.
C. Sure.
D. It's really very kind.
【单选题】
- Do you think I can borrow your bike for a few hours?____
A. I'm afraid you can.
B. I'm sorry, but I really need it this afternoon.
C. Yes, I don't think so.
D. I'll think about it later.
【单选题】
- Thank you very much for the dictionary you sent me.____
A. No thanks.
B. I'm glad you like it.
C. Please don't say so.
D. No, it's not so good.
【单选题】
- How do you like the movie we saw yesterday?____
A. You are welcome.
B. How about you?
C. I've never seen a better movie than it.
D. It is very expensive.
【单选题】
- What do you think of your new teacher____
A. He came to teach us last week.
B. He teaches us English.
C. He has two children.
D. He is very nice.
【单选题】
- Are you going to have a holiday?____
A. Not until next week.
B. Three weeks ago.
C. To Beijing.
D. I'm pleased to hear that.
【单选题】
- You seem to be lost. Need help? ____
A. Yes, would you please help me with the bag?
B. Help me find my key, please.
C. Yes, with pleasure.
D. I'm looking for Zhongshan Road.
【单选题】
- Can you help me clear up the mess____
A. Yes, it doesn't matter.
B. No, that's OK.
C. Yes, help yourself.
D. No problem.
【单选题】
- Does No.20 bus stop at our school?____
A. I go to school by bus.
B. I'm afraid not.
C. You are welcome.
D. I'll not take No.20 bus.
【单选题】
- Can I help you? ____
A. Sorry, I don't need your help.
B. What help can you give us?
C. I'd like to try on these shoes, please.
D. Thanks. You are welcome.
【单选题】
- Sorry to have kept you waiting. ____
A. That's OK.
B. What are you doing?
C. What's wrong with you?
D. Where have you been?
【单选题】
- What is she?____
A. She is a typist.
B. She is talking to her friend.
C. She is having a holiday.
D. She is my sister.
【单选题】
- That's a beautiful cat. I wonder who it belongs to.____
A. It belongs to the
B. rowns. B.The cat is my favourite too.
C. Mind your own business.
D. I can't say anything more.
【单选题】
- Excuse me, could you tell me the time____
A. You'd better buy a watch.
B. It's three thirty by my watch.
C. Can you see the clock?
D. It's late I think.
【单选题】
- What do you think of the movie we saw last night?____
A. The actress is bad.
B. Terrific!
C. The theatre is bad.
D. Nobody was there.
【单选题】
___ No, thanks. I'm just looking around. I'll let you know if I want anything.
A. Could you help me?
B. What will you buy?
C. Can I help you?
D. Do you like to look around?
【单选题】
- Hello, Peter. What do you do?____
A. I am fine.
B. I am not sick.
C. I am a student from Bonn University.
D. I came from Bonn University.
【单选题】
-Excuse me; can I have a seat here?___
A. Be hurry.
B. Come on.
C. Yes, please.
D. Do you mind?
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【单选题】
20/5t型桥式起重机接通电源,扳动凸轮控制器手柄后,电动机不转动的可能原因是___。
A. 电动机的定子或转子回路开路
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C. 电阻器R1-R5的初始值过小
D. 热继电器KH1~KH5额定值太小
【单选题】
20/5t型桥式起重机接通电源,扳动凸轮控制器手柄后,电动机不转动的可能原因是___。
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【单选题】
20/5t型桥式起重机的主接触器KM吸合后,过电流继电器立即动作的可能原因是___。
A. 电阻器R1~R5的初始值过大
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【单选题】
X62W型铣床的主电路由___、熔断器FU1、接触器KM1~KM6、热继电器KH1~KH3、电动机M1~M3、快速移动电磁铁YA等组成。
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X62W型铣床的主电路由电源总开关QS、熔断器FUI、接触器KM1~KM6、热继电器KH1~K1H3、___、快速移动电磁铁YA等组成。
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C. 按钮SB1~SB6
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【单选题】
X62W型铣床电气线路的控制电路由控制变压器TC、熔断器FU2和FU3、按钮SB1~SB6、位置开关SQ1~S07、速度继电器KS、___、热继电器kH1~kH3等组成。
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B. 快速移动电磁铁YA
C. 电源总开关QS
D. 转换开关SAl-SA3
【单选题】
X62W型铣床的主轴电动机M1采用了___启动方法。
A. 全压
B. 定子减压
C. Y-△
D. 变频
【单选题】
X62W型铣床的主轴电动机M1采用了___启动方法。
A. Y-A
B. 全压
C. 延边△
D. 转子串电阻
【单选题】
X62W型铣床进给电动机M2采用了___启动方法。
A. 定子串电抗器
B. 自耦变压器
C. 全压
D. 转子串频敏变阻器
【单选题】
X62W型铣床的冷却泵电动机M3采用了___启动方法。
A. 定子串电抗器
B. 自耦变压器
C. Y-A
D. 全压
【单选题】
X62W型铣床的___采用了反接制动的停车方法。
A. 主轴电动机M1
B. 进给电动机M2
C. 冷却泵电动机M3
D. 风扇电动机M4
【单选题】
X62W型铣床___的冲动控制是由位置开关SQ7接通反转接触器KM2一下。
A. 冷却泵电动机M3
B. 风扇电动机M4
C. 主轴电动机M1
D. 进给电动机M2
【单选题】
X62W型铣床进给电动机M2的冲动控制是由位置开关S06接通___一下。
A. 反转接触器KM2
B. 反转接触器KM4
C. 正转接触器KM1
D. 正转接触器KM3
【单选题】
X62W型铣床进给电动机M2的___有上、下、前、后、中五个位置。
A. 前后(横向)和升降十字操作手柄
B. 左右(纵向)操作手柄
C. 高低速操作手柄
D. 启动制动操作手柄
【单选题】
X62W型铣床进给电动机M2的___有左、中、右三个位置。
A. 前后(横向)和升降十字操作手柄
B. 左右(纵向)操作手柄
C. 高低速操作手柄
D. 启动制动操作手柄
【单选题】
X62W型铣床手动旋转圆形工作台时,必须将圆形工作台转换开关SAl置于___
A. 左转位置
B. 右转位置
C. 接通位置
D. 断开位置
【单选题】
X62W型铣床使用圆形工作台时,必须把前后横向和升降十字操作手柄置于___。
A. 上升位置
B. 中间位置
C. 下降位置
D. 横向位置300
【单选题】
X62W型铣床使用圆形工作台时必须把左右纵向操作手柄置于___位置。
A. 中间
B. 左边
C. 右边
D. 纵向
【单选题】
X62W型铣床的主电路、控制电路和照明电路由___实现短路保护。
A. 欠电压继电器
B. 过电压继电器
C. 熔断器
D. 热继电器
【单选题】
X62W型铣床的三台电动机由___实现过载保护。
A. 熔断器
B. 过电流继电器
C. 速度继电器
D. 热继电器
【单选题】
X62W型铣床主轴电动机的正反转互锁由___实现。
A. 接触器常闭触点
B. 位置开关常闭触点
C. 控制手柄常开触点
D. 接触器常开触点
【单选题】
X62W型铣床工作台的终端极限保护由___实现。
A. 速度继电器
B. 位置开关
C. 控制手柄
D. 热继电器
【单选题】
X62W型铣床三相电源缺相会造成___不能启动。
A. 主轴一台电动机
B. 三台电动机都
C. 主轴和进给电动机
D. 快速移动电磁铁
【单选题】
X62W型铣床主轴电动机不能启动的可能原因有___。
A. 三相电源缺相
B. 控制变压器无输出
C. 速度继电器损坏
D. 快速移动电磁铁损坏
【单选题】
X62W型铣床工作台前后进给工作正常,左右不能进给的可能原因是___。
A. 进给电动机M2电源缺相
B. 进给电动机M2过载
C. 进给电动机M2损坏
D. 冲动开关损坏
【单选题】
X62W型铣床的圆工作台控制开关在“接通”位置时会造成___。
A. 主轴电动机不能启动
B. 冷却泵电动机不能启动
C. 工作台各方向都不能进给
D. 主轴冲动失灵
【单选题】
T68型镗床电气控制主电路由电源开关QS、熔断器FU1和FU2、___、热继电器KH、电动机M1和M2等组成。
A. 速度继电器KS
B. 行程开关SQ1~SQ8
C. 接触器KM1~KM7
D. 时间继电器KT
【单选题】
T68型镗床电气线路控制电路由控制变压器TC、按钮SB1~SB5、行程开关SQ1~S08、中间继电器KA1和KA2、___、时间继电器KT等组成。
A. 电动机M1和M2
B. 速度继电器KS
C. 制动电阻R
D. 电源开关QS
【单选题】
T68型镗床进给电动机的启动由___控制。
A. 行程开关S07和S08
B. 按钮SB1~SB4
C. 时间继电器KT
D. 中间继电器KA1和KA2
【单选题】
T68型镗床的进给电动机采用了___方法。
A. 频敏变阻器启动
B. 全压启动
C. Y一△启动
D. △一YY启动
【单选题】
T68型镗床的主轴电动机采用了___方法。
A. 频敏变阻器启动
B. Y一△启动
C. 全压启动
D. △-YY启动
【单选题】
T68型镗床的主轴电动机采用了___调速方法。
A. △-YY变极
B. Y-YY变极
C. 变频
D. 变转差率
【单选题】
T68型镗床的主轴电动机采用了近似___的调速方式。
A. 恒转速
B. 通风机型
C. 恒转矩
D. 恒功率
【单选题】
T68型镗床的主轴电动机M1采用了___的停车方法。
A. 能耗制动
B. 反接制动
C. 电磁抱闸制动
D. 机械摩擦制动
【单选题】
T68型镗床的主电路、控制电路和照明电路由___实现短路保护。
A. 速度继电器
B. 中间继电器
C. 熔断器
D. 热继电器
【单选题】
T68型镗床的主轴电动机由___实现过载保护。
A. 熔断器
B. 过电流继电器
C. 速度继电器
D. 热继电器
【单选题】
T68型管床主轴电动机的高速与低速之间的互锁保护由___实现。
A. 速度继电器常开触点
B. 接触器常闭触点
C. 中间继电器常开触点
D. 热继电器常闭触点
【单选题】
T68型镗床主轴电动机只能工作在低速挡,不能高速挡工作的原因是___。
A. 速度继电器故障
B. 行程开关SQ故障
C. 热继电器故障
D. 熔断器故障
【单选题】
X62W型铣床电气线路的控制电路由控制变压器TC、熔断器FU2和FU3___、位置开关SQ1~SQ7、速度继电器KS、转换开关SA1~SA3、热继电器KH1~KH3等组成。
A. 按钮SB1~SB6
B. 电动机M1-M3
C. 快速移动电磁铁YA
D. 电源总开关QS
【单选题】
T68型管床电气控制主电路由___、熔断器FU1和FU2、接触器KM1~KM7、热继电器KH、电动机Ml和M2等组成。
A. 电源开关QS
B. 速度继电器KS
C. 行程开关SQ1~S08
D. 时间继电器KT