[单选题]在舌腹左右伞襞与舌腹中线间的三角区内，由外向内排列的结构是-我要搜题网

“预应力混凝土连续箱梁桥、混凝土浇筑、振捣、施工预拱度、荷载、管道压浆”案例答案解析题
背景材料：
某沿海大桥是一座跨径为28.5+340.5+28.5m的变截面预应力混凝土连续箱梁桥，分上下两幅，每幅单箱顶宽14.50m，底板宽7m，梁高由支点的2.75m渐变到跨中的1.80m.根据桥位处的地质情况和大桥本身的特点，采用逐段现浇，每段有一超过墩身8.5m的长度，末端浇筑长度为20m.
支架纵梁采用六四军用梁，为减小纵梁在混凝土重量作用下的过大变形，在每个边跨设一排临时支墩，3个主跨各设置两排支墩，支墩均为摩擦桩，卸落设备采用砂箱.在安装模板时，全面计算并设置了预拱度值.为减小支架变形，混凝土分2次浇筑，第一次浇筑底板和腹板，第二次浇筑顶板和翼缘板.为防止桥墩与支架发生沉降差而导致墩顶处梁体混凝土开裂，采用自两边墩台向跨中分段浇筑的方法.因管道较多、钢筋密，决定采用大直径振捣器直接运送混凝土并振捣，以确保有预应力管道下的混凝土密实.混凝土达到设计强度后，张拉预应力筋，按要求和规定压浆.
问题：
1、混凝土浇筑顺序是否合理？请说明理由.
2、混凝土振捣是否合理？为什么？
3、施工单位在计算施工预拱度时，应考虑哪些荷载？
4、如何对管道进行压浆？

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[判断题]在带电设备区域内使用起重机等起重设备时，应安装接地线并可靠接地，接地线应用多股软铜线，其截面积不得小于16mm2。
A.正确
B.错误

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[单选题]根据《建设工程安全生产管理条例》，建设工程实行施工总承包的，由(　　)对施工现场的安全生产负总责。
A.分包单位
B.建设单位
C.总承包单位
D.监理单位

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[单选题] 玻璃板液位计是根据()的原理制成的。
A.静压
B.连通器
C.变浮力
D.恒浮力

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[单项选择]任何气体千摩尔容积（标准大气压）Vm＝（）m^{3/sup>/Kmol。
A. 22.4
B. 224
C. 2240
D. 2.224}

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[单项选择]Seventeen-year-old Quantae Williams doesn’t understand why the U. S. Supreme Court struck down his school district’s racial diversity program. He now (61) the prospect of leaving his mixed-race high school in suburban Louisville and (62) to the poor black downtown schools where he (63) in fights. "I’m doing (64) in town. They should just leave it the (65) it is," said Williams, using a fond nickname for suburban Jeffersontown High School, (66) he’s bused every day from his downtown neighborhood. "Everything is (67) , we get along well. If I go where all my friends go, I’ll start getting in trouble again," Williams said as he took a (68) from his summer job (69) clothing (70) for poor families.
Last month’s 5-4 ruling by the Supreme Court struck down programs that were started voluntarily in Louisville and Seattle. The court’s decision has left schools (71) the country (72) to find a way to protect<
A. used to get
B. is used to get
C. is used to getting
D. use to get

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[判断题] 电焊机是利用正负两极在瞬间短路时产生的高温电弧来熔化电焊条上的焊料和被焊材料,使被接触物相结合的设备。
A.正确
B.错误

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[单选题]在电阻串联的电路中,电路的端电压U等于（）
A.各串联电阻端电压
B.各串联电阻两端电压的平均值
C.各串联电阻端电压的总和

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[单选题]矿井必须建立测风制度,每( )至少进行1次全面测风。
A.10天
B.周
C. 3天

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[单选题]与邻近带电设备距离小于表3、大于表5规定的工作，应填用（）工作票。
A.电力电缆第二种
B.电力线路第一种
C.电力线路第二种
D.带电作业

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[单项选择]

I have just come home after viewing some astonishing works of art that were recently discovered in Church Hole cave in Nottinghamshire. They are not drawings, as one would expect, but etchings, and they depict a huge range of wild animals. The artists who created them lived around 13,000 years ago, and the images are remarkable on a variety of counts. First of all, their sheer number is staggering, there are ninety all told. Moreover, fifty-eight of them are on the ceiling. This is extremely rare in cave art, according to a leading expert, Dr Wilbur Samson of Central Midlands University. Wall pictures are the norm, he says, "But more importantly, the Church Hole etchings are an incredible artistic achievement. They can hold their own in comparison with the best found in continental Europe." I am not a student of the subject, so I have to take his word for
A. (A) They indicate that people from central Europe had settled in Britain.
B. (B) They prove that ancient Britons hunted over large areas.
C. (C) They reveal the existence of a single ice-age culture in Europe.
D. (D) They suggest that people in continental Europe were more sophisticated than Britons.

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[简答题]凝冰散功效与作用

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[单选题]一张工作票中，同时有检修和试验时，试验前应得到（）的同意。
A.试验负责人
B.工作负责人
C.调度同意
D.工作许可人
E.略
F.略

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[单选题]个人人民币定期一本通起点金额是（）元。
A.0
B.1
C.20
D.50

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[单选题]复费率电能表为电力部门实行()提供计量手段。( )
A.两部制电价
B.各种电价
C.不同时段的分时电价
D.先付费后用电

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[单项选择]实热型崩漏应选方（）
A. 清热固经汤
B. 清热调经汤
C. 右归丸
D. 上下相资汤
E. 固本止崩汤

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[填空题]淬火的目的一般是为了得到（）组织。

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