【单选题】
3. —Where would you like to go, Jinan or Qufu? — .I only want to go to Qingdao. A. Each B. Either C. Neither D. All
A. A
B. B
C. C
D. D
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答案
C
解析
C
相关试题
【单选题】
4. — The documentary A Bite Of China II is quite popular around China recently. How do you like it? — ______. A. I think so B. Pretty good C. It’s my pleasure D. All right
A. A
B. B
C. C
D. D
【单选题】
5. There are three English-books on the shelf, but ______ of them is mine. A. both B. neither C.all D. none
A. A
B. B
C. C
D. D
【单选题】
6. When the parents arrived at the hall, the students _______ their projects. A. have finish B. finished C. had finished D. are finishing
A. A
B. B
C. C
D. D
【单选题】
7. This week, the _______ seems to change every day: one day is hot; the next day is cold. A. time B. weather C. season D. way
A. A
B. B
C. C
D. D
【单选题】
8. He never does his work _______ Mary.    A. as careful as B. so careful as C. carefully as D. as carefully as
A. A
B. B
C. C
D. D
【单选题】
9. — Can he jump high? — Yes, he ______. He is a good high jumper. A. must B. need C. can D. shall
A. A
B. B
C. C
D. D
【单选题】
10. The shop _____ at 8:00 a.m.and it ________ for ten hours every day. A. is open; has opened B. is opened; opens C. opens; is open D. opened; opens
A. A
B. B
C. C
D. D
【单选题】
11. —Excuse me, may I use your bicycle? ______ is broken. —Certainly. But remember to return it before lunch. A. Mine B. Me C. Myself D. I
A. A
B. B
C. C
D. D
【单选题】
12. —Simon, what do I need to take for the hiking? —You’d better ________ more water than usual. It’s hot today. A. to take B. taking C. take D. took
A. A
B. B
C. C
D. D
【单选题】
13. Helen ______ to a language school when she was seven. A. sent B. is sent C. will send D. was sent
A. A
B. B
C. C
D. D
【单选题】
14. — Is this park you’ve visited recently? — Yes, it's the most beautiful one I’ve ever visited before. A. that B. the one C. which D. the one which
A. A
B. B
C. C
D. D
【单选题】
15. — It’s difficult for the village children to cross the river for school. — I think a bridge ________ over the river. A. should be built B. is being built C. has been built D. was built
A. A
B. B
C. C
D. D
【单选题】
16. — Could you tell me when Mr. Li ________ in Huaibei?    — Sure..When he ________, I’ll call you.    A. arrives; will arrive B. will arrive; will arrive C. arrives; arrives D. will arrive; arrives
A. A
B. B
C. C
D. D
【单选题】
) 17.There is ________ 800-metre-long road behind ________ hospital. A. an; an B. an; the C. a; a D. a; the
A. A
B. B
C. C
D. D
【单选题】
18. — Did you see a girl in yellow pass by just now? — No, sir. I ________ a magazine. A. read B. am reading C. was reading D. would read
A. A
B. B
C. C
D. D
【单选题】
19.In fact, my parents are not only kind to me, but also strict ________ me. A. at B. to C. for D. with
A. A
B. B
C. C
D. D
【单选题】
20. The boy_____ a yellow sweater can_____ himself now. A. wearing; dress B. putting on; wear C. put on; dress D. dressing; wear
A. A
B. B
C. C
D. D
【单选题】
21. —Jack, I haven’t seen your brother for a long time. — He ________Shanghai on business for two months. A. went to B. has gone to C. has been in D. has been to
A. A
B. B
C. C
D. D
【单选题】
22. The meat with eggs tastes ______. Would you like some more? A. nice B. well C. bad D. wonderfully
A. A
B. B
C. C
D. D
【单选题】
23. — Look! The man standing at the gate ______ be our headmaster. — No, it _______ be him.He is holding a meeting in the office now. A. must; can’t B. must; mustn’t C. can’t; can’t D. can’t; mustn’t
A. A
B. B
C. C
D. D
【单选题】
24. The Japanese government must do everything ________ polluted water from running into rivers, lakes, seas and oceans. A. keep B. kept C. Keeping D. to keep
A. A
B. B
C. C
D. D
【单选题】
25. —Hi, Jack.Did you go to Jim’s birthday party? —No, I felt so sad.I . A. didn’t invite B. am not invited C. wasn’t invited D. hadn’t invited
A. A
B. B
C. C
D. D
【单选题】
( ) 26. Where does the writer of "The little Prince" come from? A.England. B.France. C.America. D.China.
A. A
B. B
C. C
D. D
【单选题】
( ) 27. What does the prince do after the fox tells him a secret? A.He cares more about a flower and a sheep. B.He meets many more strange adults on other planets. C.He realizes his love for the rose and he goes back to his planet.   D.He discovers interesting things such as a snake, other roses and a fox.
A. A
B. B
C. C
D. D
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________. A.the adult world B.the planet B -612 C.a rose and a fox D.the adventure of a young prince
A. A
B. B
C. C
D. D
【单选题】
( ) 29. What is the writer's main purpose(目的)in writing this passage?    A.To tell the readers his life story.    B.To tell people what kind of person his father was.    C.To tell the readers what present he got from his father.    D. To let people know how poor he was.
A. A
B. B
C. C
D. D
【单选题】
( )30 Why did the father not ask his son not to do this and do that?    A.Because he felt quite confident of his son.    B.Because he was born from a poor family.    C.Because he was a man of few words.    D.Because he didn't want to be much too strict with his son.
A. A
B. B
C. C
D. D
【单选题】
( ) 31. What would someone learn from this passage?    A.How to live by oneself. B.How to stand on one's own feet.    C.What a good father should do. D.What the self-important is like.
A. A
B. B
C. C
D. D
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage?    A.闲暇时光 B.学费 C.精神空虚 D.经济不足
A. A
B. B
C. C
D. D
【单选题】
( ) 33. It’s good for children to ________ on the Internet. A. give password to others B. go into a chat room as they’d like to C. give out a credit card number D. get useful knowledge and information
A. A
B. B
C. C
D. D
【单选题】
( ) 34. The underlined phrase “leak out” in the third paragraph may mean “________.” A. give away B. give out C. leave out D. put away
A. A
B. B
C. C
D. D
【单选题】
( ) 35.If your parents don’t agree, never ________. A. read anything on the Internet B. relax in your free time C. have a face-to face meeting with anyone you met online D. treat other people as you’d like to be treated
A. A
B. B
C. C
D. D
【单选题】
( ) 36. This passage is mainly about “________”. A. Internet Safety Rules B. Surfing on the Internet C. Information on the Internet D. How to use Computers
A. A
B. B
C. C
D. D
【单选题】
( ) 37. When was canned food invented? A. In 1870.          B. In 1810. C. In 1902.          D. In 1926.
A. A
B. B
C. C
D. D
【单选题】
( ) 38. After the trip to the Arctic, Clarence Birdseye invented ____________. A. canned food             B. can openers C. frozen food           D. air conditioning
A. A
B. B
C. C
D. D
【单选题】
( ) 39 Changes in weather _____________ in Willis Carrier's company. A. helped to keep food           B. made rooms comfortable C. caused health problems        D. hurt printing paper
A. A
B. B
C. C
D. D
【单选题】
( ) 40. According to the passage, which of the following may lead to inventions? A. People's needs.             B. Public support. C. Modern technology.          D. Practical suggestions.
A. A
B. B
C. C
D. D
【单选题】
1、下列词语中,读音全都正确的一组是( )  A. 箴(jiān)言 璀璨(càn) 分泌(mì) 饮鸩(jiū)止渴  B. 堵塞(sāi) 憧(chōng)憬 宝藏(cáng) 未雨绸缪(móu)  C. 缜(zhěn)密 省(xǐng)悟 弹劾(hé) 瞠(chēng)目结舌  D. 果脯(fǔ) 处(chù)罚 提(tí)防 草菅(jiān)人命
A. A
B. B
C. C
D. D
【单选题】
、下列词语中加点的字的读音完全相同的一项是( ) A. 缉私  编辑  舟楫   开门揖盗   疾恶如仇  B. 奴婢  裨益  麻痹   惩前毖后 刚愎自用  C. 强劲  颈椎  劲头  泾渭分明 不胫而走  D. 船舷  炫耀  弦乐 头晕目眩 煊赫一时
A. A
B. B
C. C
D. D
【单选题】
下列词语中带括号的字的读音,全都不相同的一组是( ) A.(樟)脑 (章)程 (獐)头鼠目 欲盖弥(彰) B.(削)皮 (消)耗 形(销)骨立 (逍)遥法外 C.(感)动 呐(喊) (咸)与维新 不胜遗(憾) D. 官(僚) (撩)拨 青面(獠)牙 星火(燎)原
A. A
B. B
C. C
D. D
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【单选题】
36在由PNP晶体管组成的基本共射放大电路中,当输入信号为1KHz、5mV的正弦电压时,输出电压波形出现了底部削平的失真。这种失真是___ 。
A. 饱和失真
B. 截止失真
C. 交越失真
D. 频率失真
【单选题】
37共集电极放大电路中Re的负反馈组态是___。
A. 电压串联负反馈
B. 电流串联负反馈
C. 电压并联负反馈
【单选题】
38为了使放大器带负载能力强,一般引入___负反馈。
A. 电压
B. 电流
C. 串联
【单选题】
41为了提高三极管放大电路的输入电阻,采用___负反馈 i=i1+i2
A. 电流
B. 电压
C. 并联
D. 串联
【单选题】
42为了稳定输出电流,采用___负反馈。
A. 电流
B. 电压
C. 并联
D. 串联
【单选题】
43为了改善放大器的动态性能,应该引入___电路。
A. 直流负反馈
B. 交流负反馈
C. 电压负反馈
D. 电流负反馈
【单选题】
44为了稳定放大器的静态工作点,应该引入___电路。
A. 直流负反馈
B. 交流负反馈
C. 电压负反馈
D. 电流负反馈
【单选题】
45共模抑制比是差分放大电路的一个主要技术指标,它反映放大电路___能力。
A. 放大差模抑制共模
B. 输入电阻高
C. 输出电阻低
【单选题】
46差分放大电路是为了___而设置的。
A. 稳定Au
B. 放大信号
C. 抑制零点漂移
【单选题】
47分析运放的“虚短”是指是___。
A. U-≈U+
B. I-≈I+≈0
C. U0=Ui
D. U-≈U+≈0
【单选题】
48分析运放的“虚断”是指是___。
A. U-≈U+
B. I-≈I+≈0
C. I-≈I+
D. U-≈U+≈0
【单选题】
51两级放大电路,Au1=-40,Au2=-50,若输入电压U1=5mv,则输出电压Uo为 ___
A. -200mv;
B. -250mV;
C. 10V;
D. 100V
【单选题】
52通用型集成运放的输入级多采用___。
A. 共基接法
B. 共集接法
C. 共射接法
D. 差分接法
【单选题】
53理想运放的两个重要性质是___。
A. 虚短与虚地
B. 虚断与虚短
C. 断路与短路
【单选题】
54振荡器的输出信号最初由___而来的。
A. 基本放大器
B. 选频网络
C. 干扰或噪声信号
【单选题】
55产生正弦波自激震荡的稳定条件是___。
A. 引入正反馈
B. |AF|≥1
C. AF=1
【单选题】
56从结构上来看,正弦振荡电路是一个 ___ 。
A. 有输入信号的负反馈放大器;
B. 没有输入信号的带选频网络的正反馈放大器;
C. 没有输入信号的不带选频网络的正反馈放大器。
【单选题】
57对频率稳定度要求较高的振荡器,要采用: ___ 。
A. LC振荡电路;
B. RC振荡电路;
C. RL振荡电路;
D. 石英晶体振荡电路。
【单选题】
58在甲类、乙类、甲乙类放大电路中,其导通角分别为___
A. 小于180 O、180 O、360O
B. 360O、180 O、小于180 O。
C. 180 O、小于180 O、360O
【单选题】
W78XX系和列W79XX系列引脚对应关系为 ___ 。
A. 一致;
B. 1脚与3脚对调,2脚不变;
C. 1、2对调。
【单选题】
60两个β相同的晶体管组成复合管后,其电流放大系数约为 ___ 。
A. β
B. β2
C. 2β
D. 1+β
【单选题】
1三极管的开关特性是___。
A. 截止相当于开关接通
B. 放大相当于开关接通
C. 饱和相当于开关接通
D. 截止相当于开关断开,饱和相当于开关接通
【单选题】
2数字集成门电路,目前生产最多应用最普遍的门电路是___
A. 与门
B. 或门
C. 非门
D. 与非门
【单选题】
3由一个三极管组成的基本门电路是___。
A. 与门
B. 非门
C. 或门 、D异或门
【单选题】
4在遥测系统中,需通过___把非电量的变化转变为电信号。
A. 电阻器、
B. 电容器、
C. 传感器、
D. 晶体管
【单选题】
5半导体发光数码管由___个条状的发光二极管组成。
A. 5
B. 6
C. 7
D. 8
【单选题】
6“有0出1,全1出0”属于___
A. 与逻辑
B. 或逻辑
C. 非逻辑
D. 与非逻辑
【单选题】
7二进制数11101转化成十进制数为___
A. 29
B. 57
C. 4
D. 15
【单选题】
8TTL系列集成芯片工作电源电压的典型值是___。
A. 18V
B. 5V
C. 3V
D. 10V
【单选题】
9能实现Y=0的电路是___图。
A. 图
B. 图
C. 图
D. 图
【单选题】
10以下表达式中符合逻辑运算法则的是___。
A. 1+1=10
B. A+A=2A
C. A+=1.
D. A·=1
【单选题】
11对于TTL与非门闲置输入端的处理,不可以___
A. 与有用输入端并联
B. 通过电阻3kΩ接电源
C. 接地
D. 接电源
【单选题】
12十线/四线优先编码器74LS147所用的输出代码为___。
A. 5421BCD码
B. 格雷码
C. 8421BCD码
D. 余3码
【单选题】
13为实现“线与”逻辑功能,应选用___
A. OC门
B. 与门
C. 异或门
D. 同或门
【单选题】
14和逻辑式A+ABC相等的式子是___
A. c
B. bc
C. abc
D. a
【单选题】
15逻辑函数的表示方法中具有唯一性的是___
A. 真值表
B. 表达式
C. 逻辑图
D. 卡诺图
【单选题】
16与模拟电路相比,数字电路主要的优点是___。
A. 容易设计
B. 通用性强
C. 抗干扰能力强
【单选题】
17某门电路的输入输出波形如图所示,试问此逻辑门的功能是___。
A. 与非
B. 或非
C. 异或
D. 同或
【单选题】
18以下电路中常用于总线应用的有___。
A. TSL门
B. OC门
C. 漏极开路门
D. CMOS与非门
【单选题】
逻辑表达式Y=AB可以用___实现。
A. 正或门
B. 正非门
C. 正与门
D. 负或门