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问题 多项选择题

下列哪几项属于世界贸易组织的决策制度

A．反向协商一致

B．协商一致

C．简单多数表决通过

D．加权表决制

答案

参考答案：B,C

解析：【测试点】 世贸组织决策程序。
【解析】 世界贸易组织的决策程序包含两项，“协商一致”和“投票表决”。首先成员方就具体事项进行协商，在协商的基础上达成一致。“一致”的含义是：只要在场的成员未提出异议，就视为一致做出一项决议。如果有成员提出异议，也就是说，成员不能取得一致，则投票表决。投票实行的是“少数服从多数”的原则，就不同的事项分别以3/4或2/3多数通过。争端解决机制实行的是“反向协商一致”的表决机制，世界贸易组织在做出决定时，不实行此机制，不要将两者相混淆。

单项选择题

喷雾喷头的雾化角最小档为（）。

A、20°

B、25°

C、30°
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单项选择题

British cancer’ researchers have found that childhood leukaemia is caused by an infection and clusters of cases around industrial sites are the result of population mixing that increases exposure. The research published in the British Journal of Cancer backs up a 1988 theory that some as yet unidentified infection caused leukaemia--not the environmental factors widely blamed for the disease.

"Childhood leukaemia appears to be an unusual result of a common infection," said Sir Richard Doll, an internationally-known cancer expert who first linked tobacco with lung cancer in 1950. "A virus is the most likely explanation. You would get an increased risk of it if you Suddenly put a lot of people from large towns in a rural area, where you might have people who had not been exposed to the infection. " Doll was commenting on the new findings by researchers at Newcastle University, which focused on a cluster of leukaemia cases around the Sellafield nuclear reprocessing plant in Cumbria in northern England. Scientists have been trying to establish why there was more leukaemia in children around the Sellafield area, but have failed to establish a link with radiation or pollution. The Newcastle University research by Heather Dickinson and Louise Parker showed the cluster of cases could have been predicted because of the amount of population mixing going on in the area, as large numbers of construction workers and nuclear staff moved into a rural setting. "Our study shows that population mixing can account for the (Sellafield) leukaemia cluster and that all children, whether their parents are incomers or locals, are at a higher risk if they are born in an area of high population mixing," Dickinson said in a statement issued by the Cancer Research Campaign, which publishes the British Journal of Cancer.

Their paper adds crucial weight to the 1988 theory put forward by Leo Kinlen, a cancer epidemiologist at Oxford University, who said that exposure to a common unidentified infection through population mixing resulted in the disease.

Who first hinted at the possible cause of childhood leukaemia by infection（）

A. Leo Kinlen

B. Richard Doll

C. Louise Parker

D. Heather Dickinson
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