【单选题】
焊缝中熔入过多的___，也会引起冷裂纹。（难）
A. 氢
B. 氧
C. 碳
D. 氮
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答案
A
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相关试题
【单选题】
焊接质量的检验包括___试验三个方面。这三者是互相补充的，而以无损探伤为主。（中）
A. 外观检查、无损探伤和仪器检测
B. 内观检查、无损探伤和机器检测
C. 外部检查、无损探伤和机械性能
D. 内部检查、无损探伤和机械性能
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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
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12. —Simon, what do I need to take for the hiking?
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15. — It’s difficult for the village children to cross the river for school.
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16. — Could you tell me when Mr. Li ________ in Huaibei?
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18. — Did you see a girl in yellow pass by just now?
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【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
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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
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【单选题】
21. —Jack, I haven’t seen your brother for a long time．
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A. went to B. has gone to C. has been in D. has been to
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【单选题】
22. The meat with eggs tastes ______. Would you like some more?
A. nice B. well C. bad D. wonderfully
A. A
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C. C
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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
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【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
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25. —Hi, Jack．Did you go to Jim’s birthday party?
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A. A
B. B
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【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
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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
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【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________．
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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
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【单选题】
( ) 34. The underlined phrase “leak out” in the third paragraph may mean “________.”
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C. C
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【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
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【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
【单选题】
下列各组词语中字的读音，全都正确的一项是（ ）
A. 羞涩（sè） 踱（dù）步 参（cēn）差不齐
B. 袅娜（nà） 煤屑（xiè） 蓊蓊（wěng）郁郁
C. 倩（qiān）影 缕缕（lǚ） 脉脉（mài）含情
D. 独处（chǔ） 颤（chàn）动 酣（hān）然入梦
A. A
B. B
C. C
D. D
【单选题】
下列词语中加点字的读音，全都不相同的一组是（ ）
A. 苗圃 逮捕 哺育 铺面
B. 侥幸 皎洁 缴纳 蹊跷
C. 仿效 旋转 旖旎 旅行
D. 机械 告诫 押解 拮据
A. A
B. B
C. C
D. D
【单选题】
下列词语中加点的字，读音全都相同的一项是（ ）
A. 螳臂当车 庇护 凋敝 筚路蓝缕
B. 蒙头转向 牛虻 懵懂 故态复萌
C. 欲盖弥彰 奢靡 静谧 风靡一时
D. 经年累月 蓓蕾 羸弱 光明磊落
A. A
B. B
C. C
D. D
【单选题】
下列各组成语中，有错别字的一项是（ ）
A. 山青水秀 磨拳擦掌 大声疾呼 苦心孤诣
B. 出类拔萃 防微杜渐 再接再厉 天网恢恢
C. 言简意赅 因地制宜 强弩之末 萍水相逢
D. 永葆青春 变幻莫测 孤注一掷 余勇可贾
A. A
B. B
C. C
D. D
【单选题】
下列各组词语中，没有错别字的一组是（ ）
A. 渲泄 跌宕 奖掖后人 名列前茅
B. 沉湎 须臾 蛊惑人心 商讨国是
C. 班驳 喝采 姗姗来迟 刚柔相济
D. 肖像 醒悟 精兵减政 绿草如荫
A. A
B. B
C. C
D. D
【单选题】
下列各组词语中，没有错别字的一组是（ ）
A. 联袂 独当一面 威慑 越俎代庖
B. 枢纽 纷至沓来 桎梏 拾人牙秽
C. 揠仰 过犹不及 滑稽 作茧自缚
D. 敷陈 殉身不恤 桀骜 文过饰非
A. A
B. B
C. C
D. D
【单选题】
下列各组词语中，有错别字的一组是（ ）
A. 寒暄 轻歌曼舞 缜密 功亏一篑
B. 庇佑 忸怩不安 木讷 仗义执言
C. 跌宕 变本加利 编篡 按部就班
D. 誊写 碑帖临摹 稗官 理屈词穷
A. A
B. B
C. C
D. D
