【单选题】
颗粒材料的密度为p，视密度为p’,松散容重为po’，则存在下列关系 ___。
A. p＞po’＞p’
B. p’＞p＞po’
C. p＞p’＞po’
D. 以上都不对
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相关试题
【单选题】
混凝土配合比设计步骤,常采用___相结合。
A. 进行调查
B. 计算与试验
C. 试配与强度
D. 计算与经验
【单选题】
新浇注与邻接的已硬化混凝土或岩土介质间的温差不得大于___。
A. 15℃
B. 20℃
C. 25℃
D. 30℃
【单选题】
混凝土测入模温度测定每工作班至少测温___。
【单选题】
将50.28修约到个位数的0.5单位得___.
A. 50
B. 50.0
C. 50.5
D. 以上都不对
【单选题】
在混凝土配合比设计时，配制强度比设计要求的强度要高一些，强度提高幅度的多少取决于___。
A. 水灰比的大小；
B. 对坍落度的要求；
C. 强度保证率和施工水平的高低；
D. 混凝土耐久性的高低；
【单选题】
硅酸盐水泥的运输和储存应按国家标准规定进行，超过___的水泥须重新试验。
A. 一个月
B. 三个月
C. 六个月
D. 两个月
【单选题】
Φ16钢筋试样作机械性能试验，在万能机上拉力示力盘指针停止转动开始转时，读得数据为50kN，则其屈服点为___。
A. 235N/mm2
B. 245N/mm2
C. 249N/mm2
D. 255 N/mm2
【单选题】
近似数 1.6, 2.424, 4.2551相加的结果是___。
A. 8.28
B. 8.3
C. 8.2791
D. 8.0
【单选题】
下列试验项目中，___不属于砂子的常规试验项目。
A. 筛分析；
B. 含泥量；
C. 压碎指标；
D. 云母含量
【单选题】
击实试验中，至少应制备的不同含水量试样为___。
【单选题】
原始记录如需更改，作废数据应划___条水平线。
【单选题】
绘制土的颗粒级配曲线时，其纵坐标为___
A. 界限粒径
B. 各粒组的相对含量
C. 小于某粒径的累计百分含量
D. 筛分时间
【单选题】
施工填料压实度是实测干密度与 ___ 之比的百分数。
A. 试验提供的最大干密度
B. 试验提供的最大湿密度
C. 试样的毛体积
D. 土颗粒密度
【单选题】
一组混凝土试件的抗压强度值分别为：24.0MP 27.2MP 20.0MPa，则此组试件的强度代表值为 ___ MPa。
A. 24．0
B. 27.2
C. 20
D. 23.7
E. 以上都不对
【单选题】
___是决定钢材性能最重要的元素，影响至钢材的强度、塑性、韧性等机械力学性能。
【单选题】
液塑限联合测定义测试数据表示在 ___ 图形上。
A. h～
B. lgh～
C. lgh～lg
D. h-lg
【单选题】
试拌调整混凝土时，发现拌和物的保水性较差，应采用___的措施来改善。
A. 增加砂率
B. 减小砂率
C. 增加水泥
D. 减小水灰比
【单选题】
随沥青用量的增加，沥青混合料的空隙率___。
A. 减小
B. 增加
C. 先减小后增加
D. 先增加后减小
【单选题】
在针入度、延度不变的情况下，石油沥青的软化点越低，应用性能___。
【单选题】
混凝土的蒸汽养护可分为，静停、升温、恒温、降温四个阶段，混凝土的降温速不宜大于 ___。
A. 5℃/h
B. 10℃/h
C. 15℃/h
D. 20℃/h
【单选题】
当工地昼夜平均气温3d低于5℃或最低气温低于-3℃时,应采取冬期施工措施. 当工地昼夜平均气温高于 ___ ℃时,应采取夏期施工措施。
【单选题】
预制梁主要有三种类型， 构件___不属于此三种类型。
A. 单线箱梁
B. 复式箱梁
C. 双线箱梁
D. 多片式T梁三种类型
【单选题】
铁路混凝土工程的各类质量检测报告、检查验收记录和其他工程技术管理资料，必须按规定及时填写，并且严格履行___签字确认制度。施工质量验收资料的归档整理应符合有关规定的要求。
A. 试验员
B. 责任人
C. 监理工程师
D. 项目负责人
【单选题】
见证取样检测是指在监理单位或建设单位监督下，由___单位有关人员现场取样，并送至具备相应资质的检测单位所进行的检测。
A. 施工
B. 监理
C. 建设
D. 第三方检测
【单选题】
钢筋接头的外观质量，施工单位、监理单位全部检查。焊接接头的力学性能检验以同级别、同规格、同接头形式和同一焊工完成的每接头为一批，不足___个也按一批计。
A. 200个；200个
B. 100个；100个
C. 60个；60个
D. 200个；100个
【单选题】
133当运至现场的混凝土发生离析现象时，应在浇筑前对混凝土进行二次搅拌，但___。
A. 不得加水
B. 可适量加细骨料
C. 可适量加水
D. 可适量加胶凝材料
【单选题】
后张法预应力筋张拉前，应对孔道摩阻损失、扩孔段摩阻损失和锚口摩阻损失进行实际测定；先张法折线配筋张拉前，对折线筋摩阻损失进行实际测定。根据实测结果对张拉控制应力做适当调整，并经监理单位和___认可。
A. 设计单位
B. 建设单位
C. 质量监督站
D. 检测单位
【单选题】
在进行弯曲试验前检查环氧涂层的针孔数，每米长度上检测出的针孔数不应超过___个，且不得有肉眼可见的裂缝、孔隙、剥离等缺陷。
【单选题】
混凝土拌制过程中，应对混凝土拌和物的坍落度进行测定，施工单位每拌制50 m3或每工作班测试不应少于1次。监理单位___检查测试结果。
A. 全部
B. 75％
C. 50%
D. 20％
【单选题】
焊（连）接接头在受弯构件的受拉区不得大于___，轴心受拉构件不得大于( A ) 。
A. 50%；25%
B. 25%；50％
C. 20％；20％ C.50％；50％
【单选题】
混凝土的 ___性能，直接影响混凝土对钢筋的保护作用。
A. 抗渗性
B. 碳化性
C. 抗蚀性
D. 耐久性
【单选题】
分项工程应由监理工程师组织施工单位分项工程___等进行验收。
A. 技术负责人
B. 工班长
C. 项目副经理
D. 项目经理
【单选题】
工程施工质量在施工单位自行检查评定的基础上，参与建设活动的有关单位共同对检验批、分项、分部、单位工程的质量按有关规定进行检验，根据相关标准以___形式对工程质量达到合格与否做出确认。
【单选题】
铁路工程当中，玄武岩在用于大于等于C30混凝土时的压碎指标为小于等于___。
A. 10%
B. 12%
C. 13%
D. 16%
【单选题】
公路高性能混凝土配合比设计中当粉煤灰掺量大于30%时，混凝土的水胶比不得大于___。
A. 0.40
B. 0.45
C. 0.50
D. 0.55
【单选题】
通用硅酸盐水泥按___的品种和掺量分为硅酸盐水泥、普通硅酸盐水泥、矿渣硅酸盐水泥、火山灰质硅酸盐水泥、粉煤灰硅酸盐水泥和复合硅酸盐水泥。
A. 混合材料
B. 硅酸盐熟料
C. 原材料
D. 原材料的矿物成份
【单选题】
《公路土工试验规程》（JTGE40-2007）规定液塑限试验锥重与入土时间为___
A. 100g，5s
B. 100g，10s
C. 76g，5s
D. 76g，10s
【单选题】
在进行水泥密度测定时室内温度应控制在___。
A. 20±5℃；
B. 20±2℃；
C. 20±1℃
D. 20±3℃
【单选题】
水泥化学分析方法，对烧失量、三氧化硫含量、氧化镁含量分别采用___基准法。
A. 灼烧差减法、硫酸钡重量法、EDTA滴定差减法
B. 灼烧差减法、硫酸钡重量法、原子吸收光谱法
C. 原子吸收光谱法、灼烧差减法、硫酸钡重量法
D. 原子吸收光谱法、EDTA滴定差减法、硫酸钡重量法
推荐试题
【单选题】
Q1:What is conversation mainly about?___
A. The woman's happy college life the man's doubt .
B. The woman's spending habits and the man's concerns .
C. The man's reminding the woman of the exam this Thursday .
D. The man's support for the woman over the past 15 years .
【单选题】
Q2:What did the woman do last night?___
A. She bought a new leather coat .
B. She studied very hard for an exam .
C. She treated all her friends to dinner .
D. She went to a concert with her friends .
【单选题】
Q3:Where did the woman get the money?___
A. She just received her student loan .
B. She saved some money for herself .
C. She borrowed the money from her friends .
D. She asked her mom to send her the money .
【单选题】
Q4:What is the man?___
A. A teacher of biology .
B. An undergraduate student .
C. A freshman in biology class .
D. A graduate teaching assistant .
【单选题】
Q1: What is this passage mainly about?___
A. How businesses can compete with each other .
B. How small businesses operate during holidays .
C. How small businesses manage holiday workers .
D. How can earn more money during holidays .
【单选题】
Q2: According to Rubin, what can small companies do to thank holiday workers?___
A. Have talks with their families .
B. Give them good extra benefits .
C. Offer them expensive holiday tokens .
D. Show appreciation to them face to face .
【单选题】
Q3: What can small business owners do to help holiday workers get into the holiday spirit?___
A. Entertain them with big meals .
B. Let them enjoy some holiday games .
C. Give them handmade thank-you cards .
D. Send their families some holiday gift cards .
【单选题】
Q4: Who are supposed to benefit most from this passage?___
A. Workers who have to work during holidays .
B. Employees who intend to earn extra money .
C. Big companies that usually close on holidays .
D. Small businesses that try to be more competitive .
【单选题】
In the first two paragraphs of the passage the writer tries to tell us that___
A. he had lived in Washington D.C. for twenty years
B. he was very imaginative when he was a child
C. he had fond memories of his old neighborhood
D. )he had come from a very poor neighborhood
【单选题】
The writer ,as a child ,was very fond of playing in the basement because ___
A. it was bright and alive
B. it contained a movie house and a space station
C. it was ideal for playing hide-and-seek
D. it was surrounded by trees and flowers
【单选题】
How did the writer feel when he visited his old neighborhood in Washington D.C. ?___
A. Greatly surprised .
B. Very regretful .
C. Quite excited .
D. Very sad .
【单选题】
On his visit to his hometown ,the writer found the old apartment building___
A. see medunfit to live in
B. had been repaired
C. could hardly be recognized
D. looked dirty and smelt horrible
【单选题】
" Youcan never go home again "inthe last sentence of this passage means that___
A. one should never revisit his hometown after many years of absence
B. one will never find his hometown the same as it was in his childhood memory
C. avisit to one's hometown will bring back one's fond memories of home
D. avisit to one's hometown will bring back many sad memorie
【单选题】
We learn from the passage that Tracy died___
A. on December 8,1992
B. of brain damage
C. 24 hours after he fell off the roof of a car
D. in a car crash
【单选题】
Tracy's parents decided to donate Tracy's organs because___
A. Tracy told them to do so just before he died
B. they wanted to save others the pain of seeing a dear one die
C. David's life could continue in a meaningful way
D. they knew David was suffering from a hopeless liver disease
【单选题】
The meeting between the writer's family and Tracy's parents was arranged because___
A. the writer and her husband wished to express their thanks to Tracy's parents
B. the local organ bank wanted to see how both families felt about the donation
C. Tracy's parents wanted to see someone whose life had been saved by the donation
D. the two families were linked by the most bittersweet ties imaginable
【单选题】
The writer and her husband learned how Tracy died___
A. from his parents
B. from the organ bank
C. from the hospital
D. from the doctor who performed the operation
【单选题】
The meeting between the two families helped to ease the Marshes'suffering because___
A. they saw that David looked very much like their son
B. they saw that David had regained health with Tracy's liver
C. they now had someone to share their memories of Tracy
D. they now knew for sure they had done the right thing
【单选题】
The writer's first marriage was unsuccessful because___
A. her husband often woke her up at midnight
B. her husband kept criticizing her
C. she was so unattractive
D. she had a self-esteem problem
【单选题】
When the writer asked for a divorce ,her husband___
A. told her that she would never find one who loved her as he did
B. delayed two years before giving her a reply
C. accused her of having an affair
D. said that she was unattractive and not worth loving
【单选题】
When the writer first met Clint ,she felt that___
A. she should have listened to her friend and met Clint earlier
B. Clint was a nice ,dazzling young man
C. Clint could not be really interested in her
D. she would find true love in Clint
【单选题】
The writer was particularly touched by Clint because___
A. he loved her children and asked for their approval of the marriage
B. he said that he could not imagine a life without her and the children
C. he believed that at 2 and 4 ,the two children were the "menof the house "
D. hekept her company and talked with her until the next morning
【单选题】
The writer's marriage to Clint is important to her mainly because___
A. it gave her and her sons a second chance to live a happy life
B. every day Clint would tell the writer that he loved her
C. it helped her to regain her self respect
D. it made her children happy ,which is all she cared about in life
【单选题】
What was Goodall's childhood dream ?___
A. She dreamed of going to college .
B. She dreamed of studying animals in Africa .
C. She dreamed of becoming a scientist .
D. She dreamed of traveling all around the world .
【单选题】
What did Goodall's mother think of her dream ?___
A. As a girl she should not go to the African jungle .
B. Her dream would remain a dream unless she got the right training .
C. As a girl she should stay away from violent animals .
D. She could make her dream come true if she was determined .
【单选题】
Goodall's most important discovery was that___
A. some animals use tools
B. like humans animals have emotions
C. chimpanzees could attack each other violently
D. termites are chimpanzees'favorite food
【单选题】
Goodall's success is chiefly due to her___
A. exceptional talents
B. scientific training
C. determination and patience
D. enthusiasm and good luck
【单选题】
What is Goodall doing now ?___
A. Studying animal behavior at Cambridge University .
B. Raising funds for the preservation of wildlife .
C. Observing chimpanzees in African jungles .
D. Working hard supervising postgraduate students.
【单选题】
___是我们理解当前所处历史方位的关键词。
A. 新时期
B. 新时代
C. 重要战略机遇期
D. 关键期
【单选题】
中国特色社会主义进入新时代,意味着科学社会主义在21世纪的中国焕发出强大生机活力,在世界上高高举起了___伟大旗帜。
A. 小康社会
B. 社会主义现代化强国
C. 和谐社会
D. 中国特色社会主义
【单选题】
“思想道德修养与法律基础”,是一门融思想性、政治性、科学性、理论性、实践性于一体的___课。
A. 专业基础
B. 通识教育
C. 思想政治理论
D. 专业选修
【单选题】
党的十九大提出到本世纪中叶,要把我国建设成富强、民主、文明、和谐、___的社会主义现代化强国。
【单选题】
思想道德和___都是调节人们思想行为、协调人际关系、维护社会秩序的重要手段。
【单选题】
中国特色社会主义思想道德建设和___紧密联系、相互促进,为中国特色社会主义事业提供坚实的思想基础、精神支撑和法治保障。
A. 中国特色社会主义文化建设
B. 中国特色社会主义经济建设
C. 中国特色社会主义政治建设
D. 中国特色社会主义法治建设
【单选题】
___是中国最早的现代大学。
A. 清华大学
B. 北京大学
C. 复旦大学
D. 浙江大学
【单选题】
《礼记·中庸》认为，道德修养应“莫见乎隐，莫显乎微，故君子慎其独也”。这种“慎独”的道德修养方法要求我们在学习“思想道德修养与法律基础”课时要注重___。
A. 学习科学理论
B. 理论联系实际
C. 知行统一
D. 多思考深理解
【单选题】
“业精于勤，荒于嬉；行成于思，毁于随”，这句话说明了学习必须做到___
【单选题】
大学生活的中心内容应是___
A. 社会活动
B. 培养动手能力
C. 恋爱
D. 学习
【单选题】
创新学习的基础是___
A. 实事求是
B. 解放思想
C. 求真务实
D. 善于思考
【单选题】
“知之为知之，不知为不知，是知也。”这句话告诉我们，在学习上一定要培养___的优良学风。
A. 求实
B. 一丝不苟
C. 勤奋
D. 敢为人先
