题目内容
综合评价方法的关键技术是“标准评分值”的确定和“标准比率”的建立。()
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当价格下跌时，成交量萎缩到一定程度就不再萎缩，意味着卖方不再认同价格继续往下降了，价格下跌趋势就将会改变。()
All aboriginal peoples have been affected by contact with contemporary civilization; in some cases, the introduction of disease, warfare, alcohol, and drugs has demoralized and destroyed peoples. Others, such as the Ainu of northern Japan, have become almost wholly assimilated. The greatest degree of racial mixture has occurred among the native Polynesians of Hawaii. The Indian population of the U.S. has extensively intermarried with whites; those Indians living on reservations retain some traditional Indian folkways. In Central and South America and in the Caribbean region, many tribes have become extinct, in most cases after Spanish or Portuguese conquest. Among aborigines who have kept strong elements of their original identity are the Inuit, Maori, Dayak, and Australian aborigines. Tribes in such comparatively inaccessible areas as the Amazon River Basin of South America still live largely according to their traditional cultures.
The word "aborigines" most probably means ______.
【B10】
Demands for stronger protection for wildlife in Britain sometimes hide the fact that similar needs are felt in the rest of Europe. Studies by the Council of Europe, of which 21 countries are members, have shown that 45 per cent of reptile(爬行的)species and 24 per cent of butterflies are in danger of dying out.
European concern for wildlife was outlined by Dr. Peter Baum, an expert in the environment and nature resources division of the council, when he spoke at a conference arranged by the administrators of a British national park. The park is one of the few areas in Europe to hold the council's diploma for nature reserves of the highest quality, and Dr. Baum had come to present it to the park once again. He was afraid that public opinion was turning against national parks, and that those set up in the 1960s and 1970s could not be set up today. But Dr. Baum clearly remained a strong supporter of the view that natural environments needed to be allowed to survive in peace in their own right.
No area could be expected to survive both as a true nature reserve and as a tourist attraction, he went on. The shortsighted view that reserves had to serve immediate human demands for out door recreation should be replaced by full acceptance of their importance as places to preserve nature for the future. "We forget that they are the guarantee of life systems, on which any built up area ultimately depends, "Dr. Baum went on, "We could manage without most industrial products, but we could not manage without nature. However, our natural environment areas, which are the original parts of our countryside, have shrunk to become mere islands in a spoiled and high ly polluted land mass."
Recent studies by the Council of Europe show that ______.
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