【判断题】【消耗次数:1】
老化是指沥青材料在外力作用下,沥青粒子产生相互位移的抵抗剪切变形的能力。
正确
错误
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相关题目
【单选题】 材料在外力作用下抵抗破坏的能力称为( )。
①  刚度
②  强度
③  韧性
④  脆性
【单选题】 在外力作用下,杆件相邻的两截面发生相对错动,这样的变形是()变形。
①  轴向拉压
②  剪切
③  扭转
④  弯曲
【判断题】 弹性变形是材料在外力作用下产生变形,当外力除去后变形随即消失,完全恢复原来形状的性质称为弹性。
①  正确
②  错误
【单选题】 稳定性是指构件在外力作用下()
①  不发生断裂
②  不产生变形
③  保持原有平衡状态
④  保持静止
【判断题】 在外力作用下,挡土墙推动土体发生位移,就产生了被动土压力。()
①  正确
②  错误
【单选题】 构件在外力作用下平衡时,可以利用()。
①  平衡条件求出所有未知力
②  平衡条件求出某些未知力
③  力系的简化求未知力
④  力系的合成或分解求未知力
【单选题】 构件在外力作用下平衡时,可以利用( )。
①  力系的简化求未知力
②  平衡条件求出某些未知力
③  平衡条件求出所有未知力
④  力系的合成或分解求未知力
【判断题】 木材在外力作用下会产生塑性变形,当应力不超过持久强度时,变形到一定限度后趋于稳定。( )
①  正确
②  错误
【单选题】 楼梯板在外力作用下表现为()。
①  横截面的上部受拉,下部受
②  横截面的上部受压,下部受拉
③  横截面的上部下部均受压
④  D 横截面的上部下部均受拉
【单选题】 阳台梁在外力作用下表现为()。
①  横截面的上部受拉,下部受压
②  横截面的上部受压,下部受拉
③  横截面的上部下部均受
④  横截面的上部下部均受拉
随机题目
【单选题】 What meaning is referred to if we say the meaning of “dog” is friendship and loyalty?
①  denotative meaning
②  connotative meaning
③  literal meaning
④  labeled meaning.
【单选题】 What does it mean to know a word?
①  know its pronunciation and stress
②  know its spelling and grammatical properties
③  know its meaning and know when and how to use it
④  all of the above.
【单选题】 Which of the following statement is not true about vocabulary?
①  a vocabulary item can be more than one word
②  Vocabulary can not be taught. It must be learned by the individuals
③  Words are best learned in context
④  An English-English dictionary is an important aid for students.
【单选题】 What meaning is referred to if we say the meaning of “dog” is an animal with four legs and a tail, often kept as a pet or trained for work?
①  denotative meaning
②  connotative meaning
③  extended meaning
④  inspired meaning.
【单选题】 What do the following examples indicate? Big, huge; enormous, immense; male, masculine .
①  synonyms
②  antonyms
③  hyponyms
④  collocations.
【单选题】 What is referred to if we say “see a movie, watch a play, look at a picture”?
①  denotative meaning
②  connotative meaning
③  collocations
④  synonyms.
【单选题】 What are two categories of vocabulary?
①  Receptive vocabulary and productive vocabulary
②  innate vocabulary and learned vocabulary
③  familiar vocabulary and unfamiliar vocabulary
④  new vocabulary and old vocabulary.
【单选题】 What are two grammar practice activities?
①  Mechanical practice and meaningful practice
②  Volume practice and communicative practice
③  Interest practice and meaningful practice
④  Mechanical practice and success oriented practice.
【单选题】 What are two broad categories of knowledge?
①  Implicit knowledge and explicit knowledge
②  Obvious knowledge and unobvious knowledge
③  Inductive knowledge and deductive knowledge
④  Refereed knowledge and inferred knowledge.
【单选题】 Which of the following steps are typical for the deductive grammar teaching method?
①  Give examples→explain rules→students do practice activities
②  Authentic language data is provided→induces learners to realize grammar rules→apply the new structure to produce sentences (the inductive method)
③  Explicit rules are give to students→Authentic language data is provided→apply the new structure to produce sentences (the guided discovery method)
④  All of the above.