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Persistent Organic Pollutants，简称POPs，指的是：（）。
- A、酒吧
- B、图片
- C、软件
- D、持久性有机污染物
参考答案
更多 “Persistent Organic Pollutants，简称POPs，指的是：（）。A、酒吧B、图片C、软件D、持久性有机污染物” 相关考题
考题
Which three statements are true about persistent configuration?()
A. A user cannot set privileges on the persistent lightweight jobsB. Persistent lightweight jobs generate a large amount of metadataC. It is possible to create fully self-contained persistent lightweight jobsD. The use of a template is mandatory to create persistent lightweight jobsE. Persistent lightweight jobs are useful when users need to create a large number of jobs in a short time
考题
Which three statements are true about persistent configuration?() (Choose three.)
A. A user cannot set privileges on the persistent lightweight jobsB. Persistent lightweight jobs generate a large amount of metadataC. It is possible to create fully self-contained persistent lightweight jobsD. The use of a template is mandatory to create persistent lightweight jobsE. Persistent lightweight jobs are useful when users need to create a large number of jobs in a short time
考题
共用题干
Organic Food:Why?1 Europe is now the biggest market for organic food in the world,expanding by 25 percent a year over the past 10 years.So what is the attraction of organic food for some people?The really important thing is that organic sounds more"natural".Eating organic is a way of defining oneself as natural,good,caring, different from the junk-food-eating masses.2 Unlike conventional farming,the organic approach means farming with natural,rather than man- made , fertilisers and pesticides. Techniques such as crop rotation（轮种）improve soil quality and helporganic farmers compensate for the absence of man-made chemicals.As a method of food production,organic is,however,inefficient in its use of labour and land;there are severe limits to how much food can be pro- duced.Also,the environmental benefits of not using artificial fertilisers are tiny compared with the amount of carbon dioxide emitted（排放）by transporting food.3 Organic farming is often claimed to be safer than conventional farming. Yet studies into organic farming worldwide continue to reject this claim.An extensive review by the UK Food Standards Agency foundthat there was no statistically significant difference between organic and conventional crops.Even where re-sults indicated there was evidence of a difference,the reviewers found no sign that these differences would have any noticeable effect on health.4 The simplistic claim that organic food is more nutritious than conventional food was always likely to be misleading. Food is a natural product,and the health value of different foods will vary for a number of rea-sons,including freshness,the way the food is cooked,the type of soil it is grown in,the amount of sunlight and rain crops have received,and so on.Likewise,the flavour of a carrot has less to do with whether it was fertilised with manure（粪便）or something out of a plastic sack than with the variety of carrot and how long ago it was dug up.5 The notion that organic food is safer than"normal"food is also contradicted by the fact that many of our most common foods are full of natural toxins（毒素）.As one research expert says : " People think that the more natural something is,the better it is for them.That is simply not the case.In fact,it is the opposite that is true:the closer a plant is to its natural state,the more likely it is that it will poison you.Naturally, many plants do not want to be eaten,so we have spent 10,000 years developing agriculture and breeding out harmful traits from crops."Paragraph 4________A:Factors That Affect Food Health ValueB:Main Reason for the Popularity of Organic FoodC:Testing the Taste of Organic FoodD:Research Into Whether Organic Food Is Better E:Necessity to Remove Hidden Dangers From FoodF:Description of Organic Farming
考题
The primary purpose of the concerned group and individuals is to ________the greenhouse gases and pollutants.A.deposit
B.decrease
C.deviation
D.deprival
考题
共用题干
Organic Food:Why?1 Europe is now the biggest market for organic food in the world,expanding by 25 percent a year over the past 10 years.So what is the attraction of organic food for some people?The really important thing is that organic sounds more"natural".Eating organic is a way of defining oneself as natural,good,caring, different from the junk-food-eating masses.2 Unlike conventional farming,the organic approach means farming with natural,rather than man- made , fertilisers and pesticides. Techniques such as crop rotation（轮种）improve soil quality and help organic farmers compensate for the absence of man-made chemicals.As a method of food production,organic is,however,inefficient in its use of labour and land;there are severe limits to how much food can be pro- duced.Also,the environmental benefits of not using artificial fertilisers are tiny compared with the amount of carbon dioxide emitted（排放）by transporting food.3 Organic farming is often claimed to be safer than conventional farming. Yet studies into organic farming worldwide continue to reject this claim.An extensive review by the UK Food Standards Agency found that there was no statistically significant difference between organic and conventional crops.Even where re- sults indicated there was evidence of a difference,the reviewers found no sign that these differences wouldhave any noticeable effect on health.4 The simplistic claim that organic food is more nutritious than conventional food was always likely to be misleading. Food is a natural product,and the health value of different foods will vary for a number of rea- sons,including freshness,the way the food is cooked,the type of soil it is grown in,the amount of sunlight and rain crops have received,and so'on.Likewise,the flavour of a carrot has less to do with whether it was fertilised with manure（粪便）or something out of a plastic sack than with the variety of carrot and how long ago it was dug up.5 The notion that organic food is safer than"normal"food is also contradicted by the fact that many of our most common foods are full of natural toxins（毒素）.As one research expert says: "People think that the more natural something is,the better it is for them.That is simply not the case.In fact,it is the opposite that is true:the closer a plant is to its natural state,the more likely it is that it will poison you.Naturally, many plants do not want to be eaten,so we have spent 10,000 years developing agriculture and breeding out harmful traits from crops."Paragraph 1_______A:Factors That Affect Food Health ValueB:Main Reason for the Popularity of Organic FoodC:Testing the Taste of Organic FoodD:Research Into Whether Organic Food is BetterE:Necessity to Remove Hidden Dangers From FoodF:Description of Organic Farming
考题
共用题干
Organic Food:Why?1 Europe is now the biggest market for organic food in the world,expanding by 25 percent a year over the past 10 years.So what is the attraction of organic food for some people?The really important thing is that organic sounds more"natural".Eating organic is a way of defining oneself as natural,good,caring, different from the junk-food-eating masses.2 Unlike conventional farming,the organic approach means farming with natural,rather than man- made , fertilisers and pesticides. Techniques such as crop rotation（轮种）improve soil quality and help organic farmers compensate for the absence of man-made chemicals.As a method of food production,organic is,however,inefficient in its use of labour and land;there are severe limits to how much food can be pro- duced.Also,the environmental benefits of not using artificial fertilisers are tiny compared with the amount of carbon dioxide emitted（排放）by transporting food.3 Organic farming is often claimed to be safer than conventional farming. Yet studies into organic farming worldwide continue to reject this claim.An extensive review by the UK Food Standards Agency found that there was no statistically significant difference between organic and conventional crops.Even where re- sults indicated there was evidence of a difference,the reviewers found no sign that these differences wouldhave any noticeable effect on health.4 The simplistic claim that organic food is more nutritious than conventional food was always likely to be misleading. Food is a natural product,and the health value of different foods will vary for a number of rea- sons,including freshness,the way the food is cooked,the type of soil it is grown in,the amount of sunlight and rain crops have received,and so'on.Likewise,the flavour of a carrot has less to do with whether it was fertilised with manure（粪便）or something out of a plastic sack than with the variety of carrot and how long ago it was dug up.5 The notion that organic food is safer than"normal"food is also contradicted by the fact that many of our most common foods are full of natural toxins（毒素）.As one research expert says: "People think that the more natural something is,the better it is for them.That is simply not the case.In fact,it is the opposite that is true:the closer a plant is to its natural state,the more likely it is that it will poison you.Naturally, many plants do not want to be eaten,so we have spent 10,000 years developing agriculture and breeding out harmful traits from crops."Techniques of organic farming help_________.A:affect their nutritional contentB:poison youC:improve soil qualityD:be eatenE:show that organic crops are safer than conventional onesF:be soeciallv trained
考题
Which three statements are true regarding persistent lightweight jobs？（）A、 Persistent lightweight jobs modify several tables in the data dictionary to generate a lot of redo.B、 The user cannot set privileges on persistent lightweight jobs.C、 Persistent lightweight jobs are useful when users need to create a large number of jobs in a short time.D、 Persistent lightweight jobs are useful when users need to create a small number of jobs that run infrequently.E、 The use of a template is mandatory to create persistent lightweight jobs.
考题
使用读秀图书搜索（http://www.duxiu.com/），查找2009年出版的书名中有“organic chemistry”的中文图书（）。 A、《有机化学 Organic chemistry eng》B、《有机化学 Organic chemistry 中文版 eng》C、《有机化学中的光谱方法 ORGANIC 6TH EDITION CHEMISTRY》D、《Organic Chemistry有机化学》
考题
When monitoring a system using vmstat with an interval， which of the following conclusions should be drawn about the metrics under page pi and page po？（）A、 The values do not include working storage.B、 The values do not include persistent storage.C、 The values include both persistent and working storage.D、 The values are not working or persistent storage.
考题
Which three statements are true about persistent configuration？（） A、 A user cannot set privileges on the persistent lightweight jobsB、 Persistent lightweight jobs generate a large amount of metadataC、 It is possible to create fully self-contained persistent lightweight jobsD、 The use of a template is mandatory to create persistent lightweight jobsE、 Persistent lightweight jobs are useful when users need to create a large number of jobs in a short time
考题
多选题Which three statements are true about persistent configuration?（） (Choose three.)AA user cannot set privileges on the persistent lightweight jobsBPersistent lightweight jobs generate a large amount of metadataCIt is possible to create fully self-contained persistent lightweight jobsDThe use of a template is mandatory to create persistent lightweight jobsEPersistent lightweight jobs are useful when users need to create a large number of jobs in a short time
考题
问答题The worst pollution threat is concentrated in and near large cities. There the people-made pollutants increasingly surpass the ability of air and water to dilute (冲淡；稀释) the contaminants (污染物) to safe levels. The natural ecological cycle depends on plants, which absorb some pollutants and release oxygen to the air. But near large cities, natural vegetation becomes scarce, and introduced trees, ornamental shrubs and gardens are far from adequate in absorbing motor vehicle and industrial air pollutants. Finally, some pollutants, most notably atomic waste, may continue to contaminate air, land, and water for thousands of years. Therefore, ecocrisis—ecocatastrophe or ecocide—has been for some time one of the major concerns of not only the ecoactivists and environmentalists, but of many scientists of other fields and the government authorities of many countries as well.
考题
多选题Which three statements are true about persistent configuration?（）AA user cannot set privileges on the persistent lightweight jobsBPersistent lightweight jobs generate a large amount of metadataCIt is possible to create fully self-contained persistent lightweight jobsDThe use of a template is mandatory to create persistent lightweight jobsEPersistent lightweight jobs are useful when users need to create a large number of jobs in a short time
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