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单选题
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
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更多 “单选题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
我国土壤环境中的POPs来源包括( )
A、堆放、填埋区域的POPs物质泄漏B、生产过程中产生POPs或从事POPs相关的化工、农药生产企业的厂区或周边区域C、一些长期施用有机氯农药的农田仍有较高浓度残留D、工农业生产不断发展导致的新POPs问题E、以上都是
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 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
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
下列有关POPs的说法，不正确的是（）A、废旧电线和电子垃圾回收金属熔融时可生成PCDDs和PCDFsB、POPs可对包括肝、肾等脏器及神经系统、内分泌系统、生殖系统、免疫系统等产生急性和慢性毒性，并具有明显的致癌、致畸、致突变等作用C、POPs在低浓度时不会对生物体造成伤害D、我国已经开始对境内POPs污染状况进行全面调查和监测E、POPs可通过胎盘和授乳传递给胎儿和婴儿，从而影响其发育
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
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
单选题我国土壤环境中的POPs来源包括（）。A
堆放、填埋区域的POPs物质泄漏B
生产过程中产生POPs或从事POPs相关的化工、农药生产企业的厂区或周边区域C
一些长期施用有机氯农药的农田仍有较高浓度残留D
工农业生产不断发展导致的新POPs问题E
以上都是
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
考题
名词解释题POPs与ODS
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