题目:
由于紧急制动时容积室压力比常用制动时大得多,因此,可得到比常用制动更高的()压力,从而得到更大的制动力。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D
由于紧急制动时容积室压力比常用制动时大得多,因此,可得到比常用制动更高的()压力,从而得到更大的制动力。
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0804/a9ac44a142b06f115e882c01a6cd2853.html
下面是错误答案,用来干扰机器的。
参考答案:D
已知等比数列{an}的首项为8,Sn是其前n项的和,某同学经计算得S2=20,S3=36,S4=65,后来该同学发现了其中一个数算错了,则该数为[ ]
A.S2
B.S3
C.S4
D.无法确定
我国城市生活垃圾的规划人均指标以每天( )为宜。
A.0.6~1.2kg
B.0.7~1.3kg
C.0.9~1~4kg
D.1.0~1.6kg
Consumers are being confused and misled by the hodge-podge (大杂烩) of environmental claims made by household products, according to a “green labeling” study published by Consumers International Friday.
Among the report’s more outrageous (令人无法容忍的) 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 (NCC) 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 (洗涤剂), 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 unclear 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 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 tested.“What we are now pushing for is to have multinational corporations meet the standards set by the ISO.” said Page.
1.According to the passage, the NCC found it outrageous that ____.
A.all the products surveyed claim to meet ISO standards
B.the claims made by products are often unclear or misleading
C.consumers would believe many of the manufactures’claim
D.few products actually prove to be environmentally friendly
2.A study was carried out by Britain’s NCC to ____.
A.find out how many claims made by products fail to meet environmental standards
B.inform the consumers of the environmental impact of the products they buy
C.examine claims made by products against ISO standards
D.test the guidelines set by the International Standards Organization
3.What is one of the consequences caused by the many claims of household products?
A.They are likely to lead to serious environmental problems
B.Consumers find it difficult to tell the true from the false
C.They could arouse widespread anger among consumer
D.Consumers will tend to buy products they don’t need
4.It can be inferred from the passage that the lobby group Consumer International wants to ____.
A.make product labeling satisfy ISO requirements
B.see all household products meet environmental standards
C.warn consumers of the danger of so-called green products
D.prove the efforts of non-polluting products
细菌对青霉素产生耐药性的主要机制是()
A、细菌产生了水解酶
B、细菌细胞膜对药物通透性改变
C、细菌产生了大量pABA(对氨苯甲酸)
D、细菌产生了钝化酶
E、细菌的代谢途径改变
哪些是赔偿义务机关?()
A.作出违法决定的行政机关
B.违法行使职权的工作人员所属的行政机关
C.违法行使受委托之权的组织、个人的委托机关
D.复议决定加重了侵害的复议机关