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即期交易的一方按约定价格买人或卖出一定数额的金融资产，交付及付款必须在当时完成。( )
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The disease, which attacks the brain and is always fatal, entered the food chain when cattle were fed the ground-up brains and spinal cords of slaughtered sheep and other animals contaminated with the disease. Fast food’’s bad effect doesn’’t end with fears of beef contamination. Critics in the U.S. also tag all those sacks of burgers and flies with helping to 【1】 another serious health problem: obesity. Currently about 44 million American adults are obese; another 6 million are 【2】 "super-obese"—more than 100 pounds overweight. The CDC found that in 1991, only 4 states had obesity 【3】 higher than 15 percent, but by last year the number had 【4】 to 31 states. In every state, obesity was increasing in all age 【5】 . And today’’s teens, the agency says, are three times more likely to be overweight than teens in the 19【10】s. Though no study has yet established a 【6】 link between fast food and obesity rates, the expansion of fast-food chains 【7】 to be accompanied by rising waves of fat. In China, the number of overweight teens 【8】 . At the same time, similar weight 【9】 occurred in Japan and Great Britain 【10】 fast-food chains expanded in those countries.
Complaining about faulty goods or bad service is never easy. First of all, complaints must he made to a responsible person. Go hack to the shop where you bought the goods, taking with you any receipt you may have and ask to see the owner.If you don’t want to do it in person, write a letter. Stick to the facts and keep a copy of what you write. At this stage you should give any receipt numbers, but need not give receipts or other documents to prove you bought the article. If you are dissatisfied with the answer you get, write to the managing director of the firm or shop. Be sure to keep copies of your own letters and any answers you receive.If your complaint is a just one, the shopkeeper may offer to replace the faulty article. You may have the right to refuse the goods and ask for a refund, but this is only where you have hardly used the goods and have acted at once. And if you have suffered some special loss, for example, a new washer tears your clothes, you might claim money to replace them. If the shopkeeper offers you a credit note to buy goods in the same shop but you would rather have money hack, say so. If you accept a credit note, remember that later you won’t be able to get refunded. In case the shop owner refuses to refund, approach your Citizens’ Advice Bureau before you accept a credit note. What should you take with you when asking to see the shop owner （）
请根据下表回答题： 某银行持有的各种货币的外汇敞口头寸如下：币种外汇敞口头寸美元200(多头)日元欧元150(空头)英镑80(空头)港币50(空头) 若该银行对待外汇风险的态度较为激进，计量总敞口头寸时主要考虑不同货币汇率的相关性，则该银行使用的总敞口头寸应为( )。
According to the United States government, people are classified as homeless if they have no place to stay and no expectation of finding a place for the next thirty days. Although technically accurate, that is an impersonal assessment of an enormous and very human problem. The homeless population represents all of us Americans. It includes men and women, the elderly, children, and infants. Its members are from all ethnic (种族的) groups. What they have in common is poverty. Currently in the U.S., thirty-nine million people live in poverty. When money is really tight, paying the rent or buying food often becomes a choice. Government assistance in the form of food stamps does help but, as one homeless man explains, you can’’t pay the rent with food stamps. With no money for rent, the streets and homeless shelters become the alternative. Although men constitute the largest group within the homeless population, homeless women with children are rapidly joining them. In fact, one quarter of the homeless people in the U.S. are teenagers and young children. People may become homeless for numerous reasons. However, there are certain factors that many of these individuals have in common. They include a lack of adequate education and job skills. A majority of the teenagers and adults have not completed high school. The abuse of alcohol and drugs is also a common factor. One third of the adult homeless population abuses alcohol, while one quarter of the same group uses drugs. Some members of this population suffer mental health problems. Within the past several years many institutions for the mentally ill have been closed and their patients sent "home". Unfortunately, a number of those people have no home to go to and they are unable to adequately look after themselves. Job loss in today’’s economy has also become a real factor in the loss of people’’s homes. The breakup of families through abandonment and divorce are also contributing factors, particularly when there are children involved. The parent who is left to care for the kids with inadequate income may be forced to depend on the homeless shelters to put a roof over their heads. The writer thinks that the U.S. government’s definition of the homeless reveals______.
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