【多选题】
增大混凝土拌合物的强度可以采取的正确措施为___
A. ：改善骨料级配
B. ：掺入速凝剂
C. ：降低水胶比
D. ：掺入减水剂
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相关试题
【多选题】
属于铁路工地试验室信用评价违规行为，且对试验室扣分值不低于6分的是___
A. 未配备信息化管理员
B. 出具虚假数据、报告，蓄意隐瞒实际质量状况
C. 伪造或故意修改试验检测数据，出具虚假试验检测报告
D. 擅自改变信息管理系统设置，造成信息管理系统工作不正常或传输虚假数据；故意停用、损坏信息管理系统
【多选题】
以下是对室内允许差的叙述，正确的有。___
A. 同一分析试验室同一分析人员（或两个分析人员），采用标准方法分析同一试样时，两次分析结果的允许偏差。
B. 如超出允许范围，应在短时间内进行第三次测定（或第三者测定），测定结果与前两次或任一次分析结果之差值符合允许差规定时，则取其平均值，否则，应查找原因，重新进行分析。
C. 两个试验室采用标准同一方法对同一试样各自进行分析时，所得分析结果的平均值之差的允许值。
D. 如有争议，应商定另一单位按标准进行仲裁分析。
【多选题】
下列叙述不正确的是___。
A. 铁路项目中填料的最大干密度均采用击实试验测得。
B. 逐级加压法进行混凝土抗渗试验时，混凝土抗渗等级应以每组6个试件中四个试件未出现渗水时的最大压力乘以10来表示。
C. 混凝土的碳化有利增加混凝土的强度，保护内部钢筋。
D. 混凝土受到硫酸盐侵蚀时，外观会出现白色结晶，强度会降低。
【多选题】
下列关于铁路项目路基填筑质量检测叙述正确的是___。
A. 高速铁路基床以下路基填筑质量采用压实系数、地基系数两个指标进行双控。
B. 地基系数和动态变形模量之间有一定的相关性，在铁路土工试验规程中有两者的换算关系式，该关系式是适合于所有的路基填筑质量检测的。
C. 高速铁路路基基床表层采用压实系数、地基系数和动态变形模量三个指标进行填筑质量控制。
D. 高速铁路路基基床表层采用孔隙率、地基系数和动态变形模量三个指标进行填筑质量控制。
【多选题】
根据铁路混凝土规范，在进行混凝土配合比设计时，还需要进行___的核算，当不满足规范要求时，需要重新选择原材料或调整基准配合比。
A. 总碱量
B. 氯离子含量
C. 三氧化硫含量
D. 浆骨体积比
【多选题】
已有牌号钢筋相同。___
A. 钢筋实测抗拉强度与实测屈服强度之比不小于1.25。
B. 钢筋实测屈服强度与屈服强度特性值之比不大于1.30
C. 钢筋的最大力总伸长率不小于9%
D. 对于没有明显屈服强度的钢，屈服强度特性值ReL应采用规定非比例伸长应
【多选题】
高聚物改性沥青基层处理剂进场检验及判定以同厂家、同品种、同批号产品，每批。___
A. 不大于3t
B. 不足3t也按一批计
C. 抽检结果全部符合技术条件要求者，判为整批合格
D. 若有一项技术要求不合格时，应双倍抽样检验该项目，若仍有一项不合格，则判整批不合格。
【多选题】
关于Evd试验，说法正确的是___。
A. 落锤质量10kg,最大冲击力7.07kN，冲击持续时间18±2ms
B. 荷载板直径为：30cm, 板厚25mm
C. 是一种动态平板载荷试验
D. 检测参数名称为：动态变形模量,计量单位为：MPa
【多选题】
下列关于适筋梁正截面受力直至破坏的说法中，正确的有___。
A. 梁的破坏始于受拉区钢筋的屈服
B. 梁的破坏始于受压区混凝土的压碎
C. 梁的最终破坏形式表现为混凝土的受压破坏
D. 适筋梁正截面承载力取决于混凝土的抗压强度
【多选题】
利用图解法测定钢筋屈服强度的方法是从力—位移曲线上读取___，除以试样原始横截面积。
A. 曲线首次下降的最小力。
B. 不计初始瞬时效应时的最小力。
C. 曲线首次下降的最大力。
D. 屈服平台的恒定力。
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【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
A. A
B. B
C. C
D. D
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that．
A. not to do B. not do to
C. dont do D. not do
A. A
B. B
C. C
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【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
A. A
B. B
C. C
D. D
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
A. A
B. B
C. C
D. D
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
A. A
B. B
C. C
D. D
【单选题】
6. A friend of my ____ and I are going to visit_______ next week．
A. father; Browns B. father's; Browns
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A. A
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C. C
D. D
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
A. A
B. B
C. C
D. D
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
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【单选题】
9.—Well do what we can ____English well this term．
—It’s high time for you to work hard．
A. study B．to study C. be studied D. be studying
A. A
B. B
C. C
D. D
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
A. A
B. B
C. C
D. D
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
A. A
B. B
C. C
D. D
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
A. A
B. B
C. C
D. D
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
A. A
B. B
C. C
D. D
【单选题】
14. We will have a _________ holiday after the exam．
A. two-month B. two month’s C. two month D. two-months
A. A
B. B
C. C
D. D
【单选题】
15. —We will build an underground in Xuzhou before 2015．
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
A. A
B. B
C. C
D. D
【单选题】
16. — Emily, here’s a dictionary．I hope it will help you in some way．
— Thank you．It’s ________ what I need．
A. almost B. still C. only D. just
A. A
B. B
C. C
D. D
【单选题】
17. —Oh．I’m hungry．Mum, can I have the hamburger on the plate?
—No．It tastes ．
A. terribly B. terrible C. good D. well
A. A
B. B
C. C
D. D
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
A. A
B. B
C. C
D. D
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years．
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
A. A
B. B
C. C
D. D
【单选题】
20.—I’m going back to see my grandparents this weekend．
—________．
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
A. A
B. B
C. C
D. D
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
A. A
B. B
C. C
D. D
【单选题】
22. —Do you know the boy________ is sitting next to Peter?
— Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A. who; ninth B. that; ninth C. /; ninth D. which; ninth
A. A
B. B
C. C
D. D
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
A. A
B. B
C. C
D. D
【单选题】
24.—You can use MSN to talk with Vivien on the Internet.
—I know. But can you tell me ________?
A. what I can use it B. when I can use it
C. why can I use it D. how can I use it
A. A
B. B
C. C
D. D
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ?
To learn about different styles of school uniform.
A. What B. Where C. Which D. Why
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. Why did Natalie Smith pay for the six cars behind her?
A. She had seven tickets.
B. She hoped to please others.
C. She knew the car drivers well.
D. She wanted to show kindness.
A. A
B. B
C. C
D. D
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ .
A. thought it was beautifully written
B. wanted to know what it really meant
C. decided to write it on a warehouse wall
D. wanted her husband to put it up in the classroom
A. A
B. B
C. C
D. D
【单选题】
( ) 35. Who came up with the phrase according to the passage?
A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
A. A
B. B
C. C
D. S
【单选题】
( ) 36. What can we infer from the last paragraph?
A. People should practice random kindness to those in need.
B. People who receive kindness are likely to offer it to others.
C. People should practice random kindness to strangers they meet.
D. People who receive kindness are likely to pay it back to the giver.
A. A
B. B
C. C
D. D
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
A. A
B. B
C. C
D. D
【单选题】
( ) 38. From a dam, people can use the water for ___________.
A. keeping the rivers clean B. only making electricity
C. irrigation and making electricity D. washing clothes
A. A
B. B
C. C
D. D
【单选题】
( ) 39. The water in the river is polluted because of _____________.
A. people's drinking water too much B. people's swimming in the river too much
C. chemicals and other materials D. people's building a dam across a river
A. A
B. B
C. C
D. D
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources
A. A
B. B
C. C
D. D
