Next week, according to United Nations projections(预测), the world will pass seven billion in population, and by the end of this

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问题     Next week, according to United Nations projections(预测), the world will pass seven billion in population, and by the end of this century it’s likely to grow by half again to ten billion.
    What will determine their quality of life? From an economist’s view, what matters is the productivity of the ten billion—will they be educated and have jobs that contribute to economic growth? From a sociologist’s view, what matters is whether the ten billion are socialized into stable roles in society—can they build families and join communities where they have dignity and focus on building for the future? From a political scientist’s view, what matters is the quality of government in countries where most of the ten billion will live—will those governments avoid corruption, enforce the rule of law, and protect participation and civil rights?
    At present, the prospects are not bright. While most of the world’s capital, managerial experience, and engineering expertise is concentrated in the high-income and emerging economies of Europe, China, North America, and Japan, none of those areas will be significant contributors to future population growth. Even China, is now reaping(获得)the results of its one-child policy and is projected to suffer a decline in population of 400 million by 2100.
    Three billion additional people will join the world this century, and virtually all of them will be growing up in countries that today are rated by the George Mason University Fragile States Index as having governments that have serious, high, or extreme fragility. These are governments that do not enforce the rule of law, have high rates of internal violence, and do a poor job providing education and jobs for their people.
Three billion additional people will grow up in countries that are rated as having governments that have______.

选项

答案serious,high,or extreme fragility

解析 由题干中的additional people和havinggovernments定位到第四段第一句。该句提到据乔治·梅森大学统计的脆弱国家指数,这个世纪多出生的30亿人口将在那些非常脆弱或极度脆弱的国家成长,由此可知空格处应填serious,high,or extreme fragility。
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