移动端

  • 题王微信公众号

    题王微信公众号

    微信搜“题王网”真题密题、最新资讯、考试攻略、轻松拿下考试

问答题

简述空气位操纵,空气制动阀置“缓解”位时的作用原理。

发布日期:2021-03-22

简述空气位操纵,空气制动阀置“缓解”位时的作用原理。

题王网让考试变得更简单

扫码关注题王,更多免费功能准备上线!

此试题出现在

铁路职业技能鉴定考试

铁路机务系统考试

去刷题
热门试题热门资讯 相关试题

2014年3月,企业购入某项交易性金融资产入账价值和计税基础均为2000000元,2014年12月31日,由于市场发生变化,该交易性金融资产的账面价值仅为1800000元,企业计提了200000元的减值准备。针对该事项,企业应做的所得税分录为()。(企业所得税税率为25%)

下列关于问卷设计的说法错误的有()

Passage1Consumers are being confused and misled by the hodge-podge of environmental claims made by household products,according to a"green labeling"study published by Consumers International Friday.Among the report's more outrageous findings,a German fertilizer described itself as “earthworm friendly"a brand of flour said it was"non-polluting"and a British toilet paper claimed to be“environmentally friendlier”.The study was written and researched by Britain's National Consumer Council QNCC)for lobby group Consumer International. It was funded by the German and Dutch governments and the European Commission."While many good and useful claims are being made,it is clear there is a long way to go in ensuring shoppers are adequately informed about the environmental impact of products they buy,"said Consumers International director Anna Fielder.The 10-country study surveyed product packaging in Britain. Western Europe,Scandinavia and the United States. It found that products sold in Germany and the United Kingdom made the most environmental claims on average.The report focused on claims made by specific products, such as detergent insect sprays and by some garden products. It did not test the claims, but compared them to labeling guidelines set by the International Standards Organization (ISO) in September,1999.Researchers documented claims of environmental friendliness made by about 2,000 products and found many too vague or too misleading to meet ISO standards."Many products had specially-designed labels to make them seem environmentally friendly, but in fact many of these symbols mean nothing," said report researcher Philip Page."Laundry detergents made the most number of claims with 158. Household cleaners were second with 145 separate claims, while paints were third on our list with 73. The high numbers show how very confusing it must be for consumers to sort the true from the misleading."he said.The ISO labeling standards ban vague or misleading claims on product packaging, because terms such as "environmentally friendly"and "non-polluting"cannot be verified."What we are now pushing for is to have multinational corporations meet the standards set by the ISO."said Page.It can be inferred from the passage that the lobby group Consumer International wants to________.

社会救助属于社会保障的哪一级别的纲领?()

进行浅层平板载荷试验时,下列不能作为终止加载的条件的一项是()。

下列各项哪项是确定传染病患者隔离期的主要依据()

建筑外门窗进行各种性能现场检测时,相同类型、结构及()的试件,应至少检测三樘。

矿用公路按用途划分的主要意义是什么?

实行“三试”的条件有哪些?

威客是指通过互联网把自己的智慧、知识、能力、经验转换成实际收益的人,他们在互联网上通过解决科学、技术、工作、生活、学习中的问题从而让知识、智慧、经验、技能体现经济价值。据上述定义,下列各项中属于威客或威客模式的网站是:(  )

暂无相关推荐~