应用现代科学技术的新成果，对旧设备的结构进行局部改革，如安装新部件、新附件或新装置使设备的技术性能得到改进，称为机器设备的（）。

答案查看网，轻松搜题/搜资源

【单选题】【消耗次数：1】

① 技术更新

② 技术改造

③ 设备更新

④ 设备改造

参考答案：

复制

纠错

相关题目

【单选题】对经过技术改造的设备进行评估，应根据技术改造的程度适当( )。

① 增加其实际已使用年限

② 减少其实际已使用年限

③ 增加其名义已使用年限

④ 减少其名义已使用年限

查看完整题目与答案

【单选题】 SPOOL技术能将（）改造成虚拟设备。

① 存储设备

② 块设备

③ 共享设备

④ 独占设备

查看完整题目与答案

【单选题】集中供热和热电联产不属于以节能为中心的技术改造和设备更新项目。（）

① 对

② 错

查看完整题目与答案

【多选题】对机器设备进行勘察和技术鉴定的具体内容包括（）。

① 填写机器设备评估申报明细表

② 对机器设备所在整个生产系统进行总体鉴定和评价

③ 对机器设备的使用状况进行勘察和鉴定

④ 对机器设备的技术状况进行分析和鉴定

查看完整题目与答案

【判断题】机器设备成新率评估参考表是确定机器设备成新率的标准。

① 正确

② 错误

查看完整题目与答案

【单选题】通过设备的技术改造提高能源的利用率，大幅度的节电、节煤、节水等。是设备改造目标的（）方面。

① 提高设备运行安全性

② 保护环境

③ 节约能源

查看完整题目与答案

【单选题】补偿设备的磨损是设备更新、改造和修理的共同目标。（）

① 对

② 错

查看完整题目与答案

【单选题】现有设备的处理意见与对新设备的技术要求不属于设备更新申请单的内容。（）

① 对

② 错

查看完整题目与答案

【单选题】在正常的技术发展速度下，设备最佳更新周期应以设备的（　　）为依据。

① 物质寿命

② 经济寿命

③ 技术寿命

④ 以上均可

查看完整题目与答案

【单选题】生产设备是科学技术发展的结晶。（）

① 对

② 错

查看完整题目与答案

随机题目

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．In many places forests slowly disappear because __________.

① many trees have been cut down by man

② new trees are not well looked after

③ man has not paid enough attention to planting trees

④ all the above

查看完整题目与答案

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．According to the passage, which is the most important service of trees to man?

① They help him make money.

② They give him cool.

③ They give him wood and other things.

④ They help him to stop droughts and floods.

查看完整题目与答案

① Trees and Man

② The Function of Tree Wood

③ How do People do with Trees?

④ The Usage of Tree Roots

查看完整题目与答案

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．Why did the country mentioned in the passage suffer from floods and starvations?

① Because it set up an empire.

② Because it fell to pieces.

③ Because it turned its trees into warships.

④ Because it spent too much money on wars.

查看完整题目与答案

【单选题】 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. The city government faces a serious problem because __________.

① fires destroyed thirty homes in a neighborhood four years ago

② the speed of rebuilding the houses is really too slow

③ the overgrowing plants in this area have made the city look terrible

④ the overgrowing plants in this area have become a big danger of fire

查看完整题目与答案

【单选题】 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. Why was the goat-keeper chosen to remove the bushes?

① Because he offered to do it for the lower price.

② Because it was easier to transport his goats.

③ Because his goats can do the job better.

④ Because the city wanted to raise more goats.

查看完整题目与答案

【单选题】 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. What are the “two birds” that the city government kills with only one stone?

① Both the sheepherder and goat-keeper will work for the city for $25,000.

② The danger of fire and providing breakfast and lunch for the work crews.

③ The danger of fire and the overflowing dump.

④ The city government can save some money and the goat-keeper has a new job.

查看完整题目与答案

① the sheepherder offered to do the job for $50,000

② the lowest bid to remove the bushes was $50,000

③ the sheepherder and the goat-keeper were both addicted to surfing the Internet

④ hiring goats to do the job saved the city government lots of money

查看完整题目与答案

① The city will remove the bushes in this area regularly.

② The goat-keeper asked for $50,000 to kill the birds with stones.

③ The goat-keeper was invited to San Diego to do some sightseeing.

④ The city government was not kind to the people who worked for it.

查看完整题目与答案

【单选题】 Susan: How do you do, Mrs. White.Mrs. White: How do you do, Susan. I’m glad you can join us. __________

① Don’t be shy.

② Please feel natural.

③ Make yourself at home.

④ Feel all right here.

查看完整题目与答案