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The following statements are correct EXCEPT
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听力原文： France and the US have signed an accord to share sensitive information on nuclear weapons. US and French officials say the agreement is aimed at maintaining the reliability and safety of the two countries' nuclear stockpiles. As part of the accord, the US will share with France its computer data on simulated nuclear explosions. Until now, the US data were shared only with Britain. Officials say the agreement will help the two countries maintain their arsenals after they sign a global treaty expected later this year that bans all nuclear testing.
As a result of the agreement, the two countries' arsenals are to be
多种证券组合报酬率的标准差小于各证券报酬率标准差的加权平均数。()
SECTION C NEWS BROADCAST
Directions: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. At the end of each news item, you will be given 10 seconds to answer the questions.
听力原文： The UN agency, the World Food Programme, says Iraq is facing a food crisis which is causing enormous damage to its population, especially its children. The agency said more and more Iraqis were spending their whole day struggling to find food for survival and the social fabric of the nation was disintegrating. 'It said an entire generation of children was being harmed irreparably, and the country was at a point of no return.
WFP says that 60% of Iraq's population that's 12 million people, are struggling to survive because of food shortages. Food for the average family costs the equivalent of $26 a month. The devaluation of the Iraqi dinar means that few can afford this. Levels of severe malnutrition among children under five now compare with sub-Sahara in Africa. The infant mortality rate has risen by more than 700% compared with before the Gulf War. Many donor states say that the Baghdad government should take the blame for this because it refuses to raise money for food by selling oil through the UN as the sanction rules allow. WFP is asking for $122 million to help feed 2 million people, mostly those under 5 or over 70. That's double the size of last year's programme, although the agency says it's still a fraction of the real need. WFP also acknowledges that it's unlikely that governments around the world will respond fully to this appeal.
According to the news, the enormous food shortage in Iraq has the most damaging effect on its
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