1．单调加载静力试验主要用于研究结构承受静荷载作用下构件的承载力、刚度、抗裂性等基本性能和破坏机制。对错

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国家开放大学 / 建筑结构试验

1．单调加载静力试验主要用于研究结构承受静荷载作用下构件的承载力、刚度、抗裂性等基本性能和破坏机制。

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建筑结构试验

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绿化的作用物业管理

【单选题】某县公安局因警力不够，聘用了一批临时人员充当联防员，周某即为其中之一，在一次执行任务中，周某违法打伤王某，若王某提出赔偿请求，则（）。国家赔偿法

光纤通信系统中,线性损耗主要包括( )A、受激拉曼散射B、材料不均匀引起的散射C、瑞利散射D、受激布里渊散射光纤通信

动物疾病特别是某些人畜共患的高致病性传染病对社会公共安全的威胁越来越大，新型冠状病毒即属于该类疾病。农业概论

题型描述: 阅读理解Community service is an important component of education here at our university. We encourage all students to volunteer for at least one community activity before they graduate. A new community program called "One On One" helps elementary students whoˊve fallen be?hind. Your education majors might be especially interested in it because it offers the opportu?nity to do some teaching, that is, tutoring in math and English.Youˊd have to volunteer two hours a week for one semester. You can choose to help a child with math, English, or both. Half-hour lessons are fine, so you could do a half hour of each subject two days a week.Professor Dodge will act as a mentor to the tutors—heˊll be available to help you with lesson plans or to offer suggestions for activities. He has office hours every Tuesday and Thursday afternoon. You can sign up for the program with him and begin the tutoring next week.Iˊm sure youˊll enjoy this community service…and youˊll gain valuable experience at the same time. It looks good on your resume, too, showing that youˊve had experience with children and that you care about your community. If youˊd like to sign up, or if you have any questions, stop by Professor Dodgeˊs office this week.1、 What is the purpose of the program that the speaker describes? A. To provide funding for a community service project. B. To find jobs for graduating students. C. To help education majors prepare for final exams. D. To offer tutorials to elementary school students. 2、 What is the purpose of the talk? A. To interest students in a new community program. B. To discuss the problems of elementary school students. C. To recruit elementary school teachers for a special program. D. To explain a new requirement for graduation. 3、 Whom do you think the speaker addresses? A. Graduated students. B. Faculty. C. Students. D. Residents. 4、 What should students who are interested in the tutorials do? A. Contact the elementary school. B. Submit a resume to the dean. C. Talk to Professor Dodge. D. Sign up for a special class. 5、 What does Professor Dodge do? A. He teaches part-time in an elementary school. B. He helps students prepare their resumes. C. He advises students to participate in certain program. D. He observes elementary school students in the classroom.统考英语A

图1所示变压器，原方N1=300匝，副方N2=100匝，R=8Ω，则从原方看入的电阻Ri是（）。图2-1电工电子技术