【多选题】【消耗次数:1】
机电一体化的机械系统设计主要包括两个环节()
静态设计
动态设计
静止设计
以上不对
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相关题目
【判断题】 机电一体化系统的机械系统与一般的机械系统相比,应具有高精度、良好的稳定性、快速响应性的特性。
①  正确
②  错误
【判断题】 机电一体化系统的机械系统与一般的机械系统相比,不具有高精度、良好的稳定性、快速响应性的特性。
①  正确
②  错误
【判断题】 机电一体化产品的适应性设计是对产品功能及结构重新进行的设计。
①  正确
②  错误
【多选题】 机电一体化产品按用途可以划分为办公机电一体化产品、 产业机电一体化产品和民用机电一体化产品。
①  办公机电一体化产品
②  产业机电一体化产品
③  民用机电一体化产品。
④  以上不对
【判断题】 机电一体化产品的变参数设计是指改变部分结构尺寸而形成系列产品的设计。
①  正确
②  错误
【单选题】 设计选型应遵循()的原则,并应与结构系统、外围护系统、设备与管线系统、内装系统进行一体化设计。
①  人体工程学
②  模数协调
③  布局合理
④  精细化
【判断题】 机电一体化产品的开发性设计是在保持原理方案不变条件下,对产品功能及结构的重新设计。
①  正确
②  错误
【判断题】 机电一体化产品适应性设计是指改变部分结构尺寸而形成系列产品。
①  正确
②  错误
【单选题】 对于机电一体化系统的涵义,至今还有不同的认识,但对机电一体化的本质特性一般认为是一个( )。
①  机械系统
②  计算机系统
③  传感系统
④  电气系统
【多选题】 机电一体化系统常用的能源有()、()、()
①  电力源
②  液压源
③  气压源
④  以上不对
随机题目
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.3.When did Robert decide to prove himself by playing basketball?
①  After he had thought about the other two ways mentioned in paragraph one.
②  Long before he moved into the street.
③  When the other boys came down to the playground.
④  As soon as he showed what he was made of in front of the other boys.
【单选题】 Do you know the man _______?
①  whom I spoke
②  to who spoke
③  I spoke to
④  that I spoke
【单选题】 The place _______interested me most was the Childrens Palace.
①  which
②  where
③  what
④  in which
【单选题】 That is the day ______Ill never forget.
①  which
②  on which
③  in which
④  when
【单选题】 This is the hotel _______last month.
①  which they stayed
②  at that they stayed
③  where they stayed at
④  where they stayed
【单选题】 Do you know the year ______the Chinese Communist Party was founded?
①  which
②  that
③  when
④  on which
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案:Goats are being hired to do the work of people near San Diego. The fires that occurred in Hillborbough four years ago destroyed thirty homes, most of which have been rebuilt. While people were rebuilding the homes, the grasses and bushes were growing back. The area is now so overgrown in bushes that there is again a major danger of fire.The city government put up bids to remove the bushes. The lowest bid they received was $50,000—and that was if the city provided breakfast and lunch for the workers for the six weeks it would take to clear the overgrown area. The city only wanted to give unlimited coffee and a piece of bread a day for each person. When that offer was rejected, the city asked for help on its website.A sheepherder in Montanta and a goat-keeper in San Bernardino read about the city’s plight(困境)while surfing the Web. They both offered to do the job for $25,000. The city government chose the goat-keeper because he lived closer. When he was told that the city dump(垃圾场)was overflowing , the goat-keeper said, “No problem. My goats will eat everything in your dump, except the car engines, of course.” So, for another $5,000, the city killed two birds with one stone. If all goes well, they will invite the goat-keeper and his “family” back every three years. The goat-keeper said that he would probably visit San Diego while his goats were in the dump. 1. The city government faces a serious problem because __________.
①  A. fires destroyed thirty homes in a neighborhood four years ago
②  B. the speed of rebuilding the houses is really too slow
③  C. the overgrowing plants in this area have made the city look terrible
④  D. the overgrowing plants in this area have become a big danger of fire
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案:Goats are being hired to do the work of people near San Diego. The fires that occurred in Hillborbough four years ago destroyed thirty homes, most of which have been rebuilt. While people were rebuilding the homes, the grasses and bushes were growing back. The area is now so overgrown in bushes that there is again a major danger of fire.The city government put up bids to remove the bushes. The lowest bid they received was $50,000—and that was if the city provided breakfast and lunch for the workers for the six weeks it would take to clear the overgrown area. The city only wanted to give unlimited coffee and a piece of bread a day for each person. When that offer was rejected, the city asked for help on its website.A sheepherder in Montanta and a goat-keeper in San Bernardino read about the city’s plight(困境)while surfing the Web. They both offered to do the job for $25,000. The city government chose the goat-keeper because he lived closer. When he was told that the city dump(垃圾场)was overflowing , the goat-keeper said, “No problem. My goats will eat everything in your dump, except the car engines, of course.” So, for another $5,000, the city killed two birds with one stone. If all goes well, they will invite the goat-keeper and his “family” back every three years. The goat-keeper said that he would probably visit San Diego while his goats were in the dump.2. Why was the goat-keeper chosen to remove the bushes?
①  A. Because he offered to do it for the lower price.
②  B. Because it was easier to transport his goats.
③  C. Because his goats can do the job better.
④  D. Because the city wanted to raise more goats.
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案:Goats are being hired to do the work of people near San Diego. The fires that occurred in Hillborbough four years ago destroyed thirty homes, most of which have been rebuilt. While people were rebuilding the homes, the grasses and bushes were growing back. The area is now so overgrown in bushes that there is again a major danger of fire.The city government put up bids to remove the bushes. The lowest bid they received was $50,000—and that was if the city provided breakfast and lunch for the workers for the six weeks it would take to clear the overgrown area. The city only wanted to give unlimited coffee and a piece of bread a day for each person. When that offer was rejected, the city asked for help on its website.A sheepherder in Montanta and a goat-keeper in San Bernardino read about the city’s plight(困境)while surfing the Web. They both offered to do the job for $25,000. The city government chose the goat-keeper because he lived closer. When he was told that the city dump(垃圾场)was overflowing , the goat-keeper said, “No problem. My goats will eat everything in your dump, except the car engines, of course.” So, for another $5,000, the city killed two birds with one stone. If all goes well, they will invite the goat-keeper and his “family” back every three years. The goat-keeper said that he would probably visit San Diego while his goats were in the dump.3. According to the passage, __________.
①  A. the sheepherder offered to do the job for $50,000
②  B. the lowest bid to remove the bushes was $50,000
③  C. the sheepherder and the goat-keeper were both addicted to surfing the Internet
④  D. hiring goats todo the job saved the city government lots of money
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案:Goats are being hired to do the work of people near San Diego. The fires that occurred in Hillborbough four years ago destroyed thirty homes, most of which have been rebuilt. While people were rebuilding the homes, the grasses and bushes were growing back. The area is now so overgrown in bushes that there is again a major danger of fire.The city government put up bids to remove the bushes. The lowest bid they received was $50,000—and that was if the city provided breakfast and lunch for the workers for the six weeks it would take to clear the overgrown area. The city only wanted to give unlimited coffee and a piece of bread a day for each person. When that offer was rejected, the city asked for help on its website.A sheepherder in Montanta and a goat-keeper in San Bernardino read about the city’s plight(困境)while surfing the Web. They both offered to do the job for $25,000. The city government chose the goat-keeper because he lived closer. When he was told that the city dump(垃圾场)was overflowing , the goat-keeper said, “No problem. My goats will eat everything in your dump, except the car engines, of course.” So, for another $5,000, the city killed two birds with one stone. If all goes well, they will invite the goat-keeper and his “family” back every three years. The goat-keeper said that he would probably visit San Diego while his goats were in the dump.4.What are the “two birds” that the city government kills with only one stone?
①  A. Both the sheepherder and goat-keeper will work for the city for $25,000.
②  B. The danger of fire and providing breakfast and lunch for the work crews.
③  C. The danger of fire and the overflowing dump.
④  D. The city government can save some money and the goat-keeper has a new job.