题目内容
After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had good news to report. The damage and death toll could have been much worse. More than 60 people died in this earthquake. By comparison, an earthquake of similar. intensity that shook America in 1988 claimed 25,000 victims. Injuries and deaths were relatively less in Los Angeles because the quake occurred at 4:31 a. m. on a holiday, when traffic was light on the city’s highways. In addition, changes made to the construction codes in Los Angeles during the last 20 years have strengthened the city’s buildings and highways, making them more resistant to quakes. Despite the good news, civil engineers aren’t resting on their successes. Pinned to their drawing boards are blueprints for improved quake-resistant buildings. The new designs should offer even greater security to cities where earthquakes often take place. In the past, making structures quake-resistant meant firm yet flexible materials, such as steel and wood, that bend without breaking. Later, people tried to lift a building off its foundation, and insert rubber and steel between the building and its foundation to reduce the impact of ground vibrations. The most recent designs give buildings brains as well as concrete and steel supports, called smart buildings, the structures respond like living organisms to an earthquake’s vibrations. When the ground shakes and the building tips forward, the computer would force the building to shift in the opposite direction. The new smart structures could be very expensive to build. However, they would save many lives and would be less likely to be damaged during earthquakes. The function of the computer mentioned in the passage is to______.
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证券交易所交易系统主机接受申报后，根据订单的成交规则进行撮合配对：符合成交条件的予以成交，不符合成交条件的继续等待成交，超过了委托时效的订单失效。( )
证券公司经批准设立的证券营业部未能按期开业前，中国证监会不再受理其新设证券营业部的申请。( )
但是，对于所有的正在进行的激动人心的工作而言，科学远没有达到一个能塑造完美的人的美好新世界的景象——或者甚至于说是塑造一个美好的番茄。在基因治疗普及之前，仍然需要做大量研究。如果许多疾病真的可以治疗的话，那将花上数十年的时间。 就短期而言，遗传筛选将是运用新技术的最可行的办法。在治疗各种DNA缺陷之前，医生能够检测到它们。在某些情况下，这些信息可以延缓疾病的发作或是减轻它的作用效果。例如，一个有着遗传性易患心脏病体质的人可以进行低脂肪的饮食。如果科学家测出由于制造一种重要蛋白质的基因存在缺陷，从而导致这种蛋白质丢失的话，也许科学家就可以给这位病人提供人工蛋白质。然而，在其他的情况下，对于阻止由于基因突变而导致的不幸几乎无能为力。
The fridge is considered a necessity. It has been so since the 1960s when packaged food first appeared with the label: "store in the refrigerator. " In my fridgeless fifties childhood, I was fed well and healthily. The milkman came daily, the grocer, the butcher, the baker, and the ice-cream man delivered two or three times a week. The Sunday meat would last until Wednesday and surplus bread and milk became all kinds of cakes. Nothing was wasted, and we were never troubled by rotten food. Thirty years on food deliveries have ceased, fresh vegetables are almost unobtainable in the country. The invention of the fridge contributed comparatively little to the art of food preservation. A vast way of well-tried techniques already existed—natural cooling, drying, smoking salting, sugaring, bottling... What refrigeration did promote was marketing—marketing hardware and electricity, marketing soft drinks, marketing dead bodies of animals around the globe in search of a good price. Consequently, most of the world’s fridges are to be found, not in the tropics where they might prove useful, but in the wealthy countries with mild temperatures where they are climatically almost unnecessary. Every winter, millions of fridges hum away continuously, and at vast expense, busily maintaining an artificially-cooled space inside an artificially-heated house while outside, nature provides the desired temperature free of charge. The fridge’s effect upon the environment has been evident, while its contribution to human happiness has been insignificant. If you don’t believe me, try it yourself, invest in a food cabinet and turn off your fridge next winter. You may miss the hamburgers, but at least you’ll get rid of that terrible hum. What statement can be inferred from this article
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