首次通过法显像时,如果出现了"脏污肺"的影像,原因是() A.存在右至左分流 B.存

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问题:

首次通过法显像时,如果出现了"脏污肺"的影像,原因是()

A.存在右至左分流

B.存在左至右分流

C.存在心室至心房的返流

D.存在主动脉瘤

E.存在肺动脉瓣的返流

考点:广东住院医师急诊医学医学影像科医学影像科题库
题型:单项选择题

下列说法中不正确的是[ ]

A.人的交往是以自我为圆心向外扩展的

B.青少年的交往主要集中在“外圈”

C.青少年在“外圈”交往中应该十分谨慎

D.踏上社会后交往关系拓展成“外圈”

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列方程解应用题:A、B两地相距150千米.一辆汽车以每小时50千米的速度从A地出发,另一辆汽车以每小时40千米的速度从B地出发,两车同时出发,相向而行,问经过几小时,两车相距30千米?

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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 unacceptalbe 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 Consumers 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 that there is a long way to go in ensuring shoppers are adequately informed about the environmental impacts 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 some garden products. It did not test 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 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.

小题1:According to the passage, the NCC found it unacceptable that _______.

A.all the products surveyed claim to meet ISO standards

B.the claims made by products are often unclear and deceiving

C.consumers would believe many of the manufacturers’ claims

D.few products actually prove to be environment friendly小题2:As indicated in this passage, with so many good claims, the consumers _______.

A.are becoming more cautious about the products they are going to buy

B.are still not willing to pay more for products with green labeling

C.are becoming more aware of the effects different products have on the environment

D.still do not know the exact impact of different products on the environment小题3: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.verify the effects of non-polluting products

题型:单项选择题

支气管哮喘发病的主要机制

A.过敏因素+呼吸道感染
B.过敏因素+精神因素
C.感染+迷走神经兴奋性增高
D.过敏因素+大脑皮层功能紊乱
E.以上都不是

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矿渣水泥的干缩性大、抗冻性和耐磨性都不如普通水泥。

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