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火山爆发与减少耕地面积之间有联系吗 1982年2月底至3月，墨西哥爱尔·基琼火山爆发。据报道，这次火山爆发飞向天空的火山灰数量是观测史上数量最大的一次，这对自然界产生了重大的影响。一方面，大量的火山灰喷入空中，遮蔽了自然日光，山太阳发出的光能就会被反射回去，从而使得那些需要阳光的地球生物无法获得充足的太阳能。另一方面，由于火山灰云笼罩了整个地球，仿佛给地球盖了个天棚，这个天棚会使本来应从地球向外散发的某些能量反射回地球。结果世界各地几个典型地区产生了显著的气象变化。 1983年冬，某北极考察船在北极被困住。往常根本不会结冰的地方，这回竟结冰封冻了，甚至连前去救援的破冰船也进退不能。大量火山灰飞向天空，使空气有了大量水蒸气变成水滴的核，平时不会变成水滴的水蒸气也变成了水滴，结果造成沿海地区大量降雨，像英国、法国海岸、西班牙、葡萄牙等这样一些本来就是多雨的地区，降雨量进一步增加。伦敦降雨27天，为历史所少见。与沿海地区的多雨相反，在那些内陆地区却出现了严重的干旱。季风刮来，在沿海地带雨水就已降下，季风无法再将水分带向内陆地区，于是干燥的空气被送往内地。结果伴随着西欧沿海国家的多雨，东欧三国出现了有史以来的第一次大旱。大雨、干旱、寒冷必然会导致全世界范围的农业歉收。对气象问题颇有研究的美国拥有气象卫星，依靠这些卫星，可以对全世界的农业进行监视。所以，对于上述种种气象变化所导致的世界各地农业不振的局面，当然也是清楚的。但就在此时，美国却推出了一个减少1/3耕地面积的决定。 美国是在明知世界各地的农业将出现不景气的情况下，决定减少耕地面积的。据说在施行这一决定时，美国官方还采取一旦农民需要，立刻还给他们减少的那部分粮食的做法。毫无疑问，结果是谷物价格上涨，芝加哥的谷物市价比以往上升了1.6倍。此外，由于谷物价格的提高，农民的收入随之增多。这给与农业相关的行业，如农具、化肥、农药等也带来了新的转机。 事实上，早在1982年，美国就将粮食作为战略物资，试图禁止对苏联的出口，但结果却失败了。在爱尔·基琼火山爆发引发世界气候大变化之前，除美国外还有一些国家也具有粮食出口能力。例如，苏联从阿根廷进口粮食，就曾使美国出现大量的粮食剩余，其价格直线下降，引起农民和一部分人的不满。 世界农业大面积歉收，最具粮食出口能力的美国减少1/3的耕地面积，这使得依赖粮食进口的苏联必须花更多的外汇换取粮食。这样，1982年美国遭受的损失，又借助天气赚了回来。所以有人把美国的这一决定视为利用气象因素实现一箭多雕的绝好范例。然而，美国的决定是否真的明智和成功呢 根据上述情况，请回答下列问题： 美国政府的上述决策具有如下特点( )。
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火山爆发与减少耕地面积之间有联系吗 1982年2月底至3月，墨西哥爱尔·基琼火山爆发。据报道，这次火山爆发飞向天空的火山灰数量是观测史上数量最大的一次，这对自然界产生了重大的影响。一方面，大量的火山灰喷入空中，遮蔽了自然日光，山太阳发出的光能就会被反射回去，从而使得那些需要阳光的地球生物无法获得充足的太阳能。另一方面，由于火山灰云笼罩了整个地球，仿佛给地球盖了个天棚，这个天棚会使本来应从地球向外散发的某些能量反射回地球。结果世界各地几个典型地区产生了显著的气象变化。 1983年冬，某北极考察船在北极被困住。往常根本不会结冰的地方，这回竟结冰封冻了，甚至连前去救援的破冰船也进退不能。大量火山灰飞向天空，使空气有了大量水蒸气变成水滴的核，平时不会变成水滴的水蒸气也变成了水滴，结果造成沿海地区大量降雨，像英国、法国海岸、西班牙、葡萄牙等这样一些本来就是多雨的地区，降雨量进一步增加。伦敦降雨27天，为历史所少见。与沿海地区的多雨相反，在那些内陆地区却出现了严重的干旱。季风刮来，在沿海地带雨水就已降下，季风无法再将水分带向内陆地区，于是干燥的空气被送往内地。结果伴随着西欧沿海国家的多雨，东欧三国出现了有史以来的第一次大旱。大雨、干旱、寒冷必然会导致全世界范围的农业歉收。对气象问题颇有研究的美国拥有气象卫星，依靠这些卫星，可以对全世界的农业进行监视。所以，对于上述种种气象变化所导致的世界各地农业不振的局面，当然也是清楚的。但就在此时，美国却推出了一个减少1/3耕地面积的决定。 美国是在明知世界各地的农业将出现不景气的情况下，决定减少耕地面积的。据说在施行这一决定时，美国官方还采取一旦农民需要，立刻还给他们减少的那部分粮食的做法。毫无疑问，结果是谷物价格上涨，芝加哥的谷物市价比以往上升了1.6倍。此外，由于谷物价格的提高，农民的收入随之增多。这给与农业相关的行业，如农具、化肥、农药等也带来了新的转机。 事实上，早在1982年，美国就将粮食作为战略物资，试图禁止对苏联的出口，但结果却失败了。在爱尔·基琼火山爆发引发世界气候大变化之前，除美国外还有一些国家也具有粮食出口能力。例如，苏联从阿根廷进口粮食，就曾使美国出现大量的粮食剩余，其价格直线下降，引起农民和一部分人的不满。 世界农业大面积歉收，最具粮食出口能力的美国减少1/3的耕地面积，这使得依赖粮食进口的苏联必须花更多的外汇换取粮食。这样，1982年美国遭受的损失，又借助天气赚了回来。所以有人把美国的这一决定视为利用气象因素实现一箭多雕的绝好范例。然而，美国的决定是否真的明智和成功呢 根据上述情况，请回答下列问题： 美国政府应从以下哪个方面考虑此类决策( )
下列程序的输入值分别为100,10则执行结果为非作歹______ 。 m=Val (inputbox (“请输入数学1”) ) n=Val (inputbox (“请输入数学2”) ) If n*m=0 Then MsgBox “两数能不能为0” Exit Sub If m＜n Then t=m: m=n: n=t End If End If DO R=m Mod n m=n n=f Loop While r＜＞0 Print m
TEXT D Robert Congel, a commercial real-estate developer who lives in upstate New York, has a plan to "change the world." Convinced that it will "produce more benefit for humanity than any one thing that private enterprise has ever done," he is raising $20 billion to make it happen. That’ s 12 times the yearly budget of the United Nations and more than 25 times Congel’ s own net worth. What Congel has in mind is an outsize and extremely unusual mega-mall. Destiny U.S.A., the retail-and entertainment complex he is building in upstate New York, aspires to be not only the biggest man-made structure on the planet but also the most environmentally friendly. Equal parts Disney World, Las Vegas, Bell Laboratories and Mall of America -- with a splash of Walden Pond -- the "retail city" will include the usual shops and restaurants as well as an extensive research facility for testing advanced technologies and a 200-acre recreational biosphere complete with spring-like temperatures and an artificial river for kayaking. After a false start in 2002, countless changes of plan and a storm of local opposition, Congel is finally breaking ground again, with a projected completion date of 2009. Later this month, bulldozers powered by biodiesel are scheduled to begin leveling the site, a rehabilitated brownfield in Syracuse, Congel’ s hometown. Whether Congel’ s firm, the Pyramid Companies, can maintain the cash flow and political support needed to complete the project is a subject of much local debate. Also disputed are Congel’ s goals of creating 200,000 jobs regionally and making Destiny nothing less than "the No. l tourist destination in America." More mind-boggling than the sheer scope of Destiny is its agenda. Congel emphasizes that renewable energy alone will power the mall, with its 1,000 shops and restaurants, 80,000 hotel rooms, 40,000-seat arena and Broadway-style theaters. As a result, Congel says, Destiny will jump-start renewable-energy markets nationwide with its investments in solar, ,,wind, fuel cells and other alternative-energy sources. But if Congel does manage to erect his El Dorado, will it really help cure our country’ s addiction to scarce and highly polluting fossil fuel Or will it just be a cleverly marketed boondoggle that may create more environmental problems than it solves All by itself, the mall would boost America’ s solar-electric power capacity by nearly 10 percent. "On every level, this project astounds," Senator HIillary Clinton said in April, claiming that the mall could make the area a hub for clean technologies and deliver a shot of adrenaline to upstate New York’ s ailing economy. To help foot the bill for Congel’s project, Clinton and other politicians successfully persuaded Congress to provide financial incentives for mega-scale green development projects. (Destiny, of course, will face little competition to reap hose benefits.) The mall is astounding because ______.
TEXT C In sixteenth-century Italy and eighteenth-century France, waning prosperity and increasing social unrest led the ruling families to try to preserve theft superiority by withdrawing from the lower and middle classes behind barriers of etiquette. In a prosperous community, on the other hand, polite society soon adsorbs the newly rich, and in England there has never been any shortage of books on etiquette for teaching them the manners appropriate to their new way of life. Every code of etiquette has contained three elements: basic moral duties; practical rules which promote efficiency; and artificial, optional graces such as formal compliments to, say, women on their beauty or superiors on their generosity and importance. In the first category are considerations for the weak and respect for age. Among the ancient Egyptians the young always stood in the presence of older people. Among the Mponguwe of Tanzaia, the young men bow as they pass the huts of the elders. In England, until about a century ago, young children did not sit in their parents’ presence without asking permission. Practical rules are helpful in such ordinary occurrences of social life as making proper introductions at parties or other functions so that people can be brought to know each other. Before the invention of the fork, etiquette directed that the fingers should be kept as clean as possible; before the handkerchief came into common use, etiquette suggested that after spitting, a person should rub the spit inconspicuously underfoot. Extremely refined behavior, however, cultivated as an art of gracious living, has been characteristic only of societies with wealth and leisure, which admitted women as the social equals of men. After the fall of Rome, the first European society to regulate behavior in private life in accordance with a complicated code of etiquette was twelfth-century Province, in France. Provence had become wealthy. The lords had returned to their castle from the crusades, and there the ideals of chivalry grew up, which emphasized the virtue and gentleness of women and demanded that a knight should profess a pure and dedicated love to a lady who would be his inspiration, and to whom he would dedicate his valiant deeds, though he would never come physically close to her. This was the introduction of the concept of romantic love, which was to influence literature for many hundreds of years and which still lives on in a debased form in simple popular songs and cheap novels today. In Renaissance Italy too, in the fourteenth and fifteenth centuries, a wealthy and leisured society developed an extremely complex code of manners, but the rules of behavior of fashionable society had little influence on the daily life of the lower classes. Indeed many of the rules, such as how to enter a banquet room, or how to use a sword or handkerchief for ceremonial purposes, were irrelevant to the way of life of the average working man, who spent most of his life outdoors or in his own poor hut and most probably did not have a handkerchief, certainly not a sword, to his name. Yet the essential basis of all good manners does not vary. Consideration for the old and weak and the avoidance of banning or giving unnecessary offence to others is a feature of all societies everywhere and at all levels from the highest to the lowest. Etiquette as an art of gracious living is quoted as a feature of which country
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