出自:佳木斯大学语言治疗学

其表现有( )
· 家庭电话普遍使用
· 人们乘坐火车外出旅
· 电力成为主要动力
· 人们利用网络进行交流
普通混凝土的立方体抗压强度<i>fcu</i>与轴心抗压强度<i>fcp</i>之间的关系是（ ）。
·fcp>fcu
·fcp=fcu
·不一定
坍落度是表示塑性混凝土（ ）的指标。
·和易性
·流动性
·粘聚性
·保水性
压碎指标是表示（ ）强度的指标。
·普通混凝土
·石子
·轻骨料混凝土
·轻骨料
在受工业废水或海水等腐蚀环境中使用的混凝土工程，不宜采用（ ）。
·普通水泥
·矿渣水泥
·火山灰水泥
·粉煤灰水泥
沥青混合料的稳定度表示其抵抗温度变形的能力。
·true
·false
寒冷地区应尽量选用脆性转变温度较高的建筑钢材。
·true
·false
粉煤灰砌块的干缩较小。
·true
·false
硅酸盐水泥不适用于有防腐要求的混凝土工程。
·true
·false
沥青用量降低会显著影响沥青路面的寿命。
·true
·false
吊车梁和桥梁用钢，要注意选用韧性大，且时效敏感性大的钢材。
·true
·false
混凝土的强度平均值和标准差，都是说明混凝土质量的离散程度的。
·true
·false
保持砂率不变增加砂石用量，可以减小混凝土拌合物的流动性。
·true
·false
强度不合格的水泥应作废品处理。
·true
·false
采用酸性矿料可以改善沥青混合料的强度。
·true
·false
钢材冷拉是指在常温下将钢材拉断，以伸长率作为性能指标。
·true
·false
钢筋的级别越高，其强度越高，塑性越差，可焊性越好。
·true
·false
压碎指标是表示空心砖强度的指标。
·true
·false
水硬性胶凝材料只能在水中硬化。
·true
·false
用沸煮法检查水泥试饼，未发现放射状裂纹，就可判定该水泥为体积安定性合格。
·true
·false
沥青的塑性用延度表示，牌号越高，塑性越好。
·true
·false
冷拉是指在低温条件下对钢筋进行拉伸处理，以提高其屈服强度。
·true
·false
采用石灰混合砂浆是为了改善砂浆的保水性。
·true
·false
混凝土立方体抗压强度的标准试件尺寸为 100mm 。
·true
·false
沥青混合料中掺矿粉是为了提高混合料的密实度。
·true
·false
砂浆的保水性用沉入度表示，沉入度愈小表示保水性愈好。
·true
·false
建筑钢材根据屈服点和抗拉强度确定牌号。
·true
·false
普通混凝土的强度与水灰比成线性关系。
·true
·false
流动性大的混凝土比流动性小的混凝土强度高。
·true
·false
材料的密度一定高于其表观密度。
·true
·false
材料吸水后，将使材料的（ ）提高。
·耐久性
·强度和导热系数
·密度
·体积密度和导热系数
在原材料一定的情况下，影响混凝土强度决定性的因素是（ ）。
·水泥标号
·水泥用量
·水灰比
·骨料种类
在混凝土配合比设计中，选用合理砂率的主要目的是（ ）。
·提高混凝土的强度
·改善拌合物的和易性
·节省水泥
·节省粗骨料
不宜用来生产蒸汽养护混凝土构件的水泥是（ ）
·普通水泥
·火山灰水泥
·矿渣水泥
·粉煤灰水泥
Which is the best solutioto overpopulation
·Coercive populatiocontrol measures.
·Supporting free and subsidized food programs.
·Instituting a number of social welfare programs.
·The radical transformatioof the global economic system.
The economic security of poor families iKerala was greatly improved through the following measures except ________.
·the constructioof clinics ipoor areas
·&nbsp;increased expenditures opublic health
·higher educatiofor women
·women’s control over reproduction
The author cites the example of Sri Lanka to prove that _________.
·rising living standards constitute the best guarantee that countries will have lower birth rates
· social welfare policies will produce impressive results
· overpopulatiois acceptable to some extent
· higher educatiofor womeleads to greater control over reproduction
Ithis passage, which of the following is not mentioned as the cause of higher reproductive rates ithe Third World
·Poverty and inequality ithe Third World have increased.
·Profit-driveand export-oriented industries have beesubstituted for by local alternatives.
·“Structural adjustment” programs were imposed othe Third World by the World Bank.
·Poor families with more childrecagenerate income and ensure economic security iold age.
The global economic system that seeks to increase profits at all costs leads to the following results except __________.
·lower birth rates
·social injustice
·overpopulation
·environmental degradation
__ iteaching beginners.
· inexperienced
· experienced
· inexperience
· experience
u do need a very _____ secretary.
· efficient
· favorite
· primary
· current
The doctors have _____warned him not to work so hard.
· repeat
·repeating
·repeatedly
·repetition
plained the _____cause of the First World War.
· effective
·necessary
·vocabulary
·primary
___agreed to let him go.
· reluctantly
·fluently
·carefully
·surprisingly
Many of the students _____that the exam was too hard.
· arranged
·encouraged
·complained
·communicated
ifficult to_____what his teachers said iclass.
· punish
·recognize
·purchase
·absorb
Cayou turthe music down, please I can’t _____omy work.
· depend
·flutter
·concentrate
·handle
Very few plants and animals ca_____heat and cold for a long time.
· motivate
·endure
·tremble
·operate
Since you are so busy, you do need a very _____secretary.
· efficient
·content
·popular
·patient
The old lady likes to be alone, and only goes out overy _____occasions.
· successful
·rare
·hopeful
·splendid
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