【单选题】【消耗次数:1】
伸长率是衡量钢材的( )指标。
弹性
塑性
脆性
耐磨性
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相关题目
【单选题】 伸长率是衡量钢材的( )指标。
①  弹性
②  塑性
③  脆性
④  耐磨性
【判断题】 伸长率越大,钢材的塑性越好。
①  正确
②  错误
【判断题】 钢材的伸长率越大,则塑性越好( )。
①  正确
②  错误
【判断题】 钢材的伸长率越大,则塑性越好( )。
①  正确
②  错误
【判断题】 伸长率反映的是钢材在均匀变形下的塑性。
①  正确
②  错误
【判断题】 钢筋的塑性性能可以通过伸长率和冷弯性能两个指标来衡量。
①  正确
②  错误
【判断题】 钢筋的塑性变形性能通常用伸长率和抗弯性能两个指标来衡量。
①  正确
②  错误
【判断题】 钢材的品种相同时,其伸长率10A5A。
①  正确
②  错误
【单选题】 建筑钢材的伸长率与( )标准拉伸试件标距间长度的伸长值有关。
①  试件塑性变形后
②  试件断裂后
③  到达屈服应力时
④  到达极限应力时
【单选题】 建筑钢材的伸长率与()标准拉伸试件标距间长度的伸长值有关。
①  到达屈服应力时
②  到达极限应力时
③  试件塑性变形后
④  试件断裂后
随机题目
【单选题】 Which of the following is the advantage of pair work?
①  It is an ideal way to show materials and do presentations together
②  It allows students to work together rather than under teacher’s guidance
③  It reinforces a sense of belonging among a group of members
④  It is very stressful.
【单选题】 Which of the following is the time when students work in a pair?
①  When all the students are under the control of the teacher
②  When students work in pairs on an exercise or a task
③  When students work in small groups
④  When students are expected to work on their own at their own speed.
【单选题】 What role does a teacher play in the following activity? The teacher writes one of five numbers (1-5) on a number of cards (the same number as the students). Each student draws one card. Those who have drawn number 1 will form group1, and those who have drawn number 2 will form group 2. Thus the students are put into five groups in a random way.
①  Controller
②  Assessor
③  Organizer
④  Prompter.
【单选题】 What are language contents?
①  Structures, vocabulary, functions and topics
②  Pictures, vocabulary, communication and topics
③  PPT, structures, aims and summary
④  Structures, aims, functions and topics.
【单选题】 Which part is to be finished after a lesson in a lesson plan?
①  Teaching aids
②  End of a lesson summary
③  Optional activities and assignment
④  After lesson reflection.
【单选题】 What are the principles for good lesson planning?
①  Aim, variety, flexibility, learnability and linkage
②  Aim, preparation flexibility and linkage
③  Aim, micro-planning, macro-planning and flexibility
④  Aim, micro-planning, macro-planning and variety.
【单选题】 What is the function of optional activities?
①  Backups in case the lesson goes too fast and there are a few minutes left
②  Prepared for good students
③  Prepared for bad students
④  Used for emergency.
【单选题】 What are very commonly used teaching procedures and stages?
①  Presentation, practice and production
②  Pre-reading, while-reading and post-reading
③  Mechanical practice and meaningful practice
④  Both A and B.
【单选题】 What are the guidelines for writing teaching aims in a lesson plan?
①  Clear, brief
②  Specific, students-oriented
③  Specific, teacher-oriented
④  Both A and B.
【单选题】 What is discourse competence concerned with?
①  Appropriate use of the language in social context
②  Ability to create coherent written text or conversation and the ability to understand them
③  Strategies one employs when there is communication breakdown due to lack of resources
④  Knowledge of language itself, its form and meaning.