imminent social disintegration; Americans as individuals consume more than any other people in the world; Social machinery necessary to keep each American in the manner to which he is accustomed is...
试题来源: 解析 C。解析:文章指出人口增长导致更多的森林砍伐,这使得无数物种失去栖息地,所以C选项正确;A选项森林砍伐与依赖不可再生能源没有直接因果关系;B选项森林砍伐与废物产生增加没有直接联系;D选项森林砍伐与农民使用更多化肥没有必然联系。反馈 收藏 ...
根据第二段最后一句 Declining birth rate is a major problem in many developing regions too, which might cause catastrophic global shortages of work force within a few decades 可知在许多发展中地区, 持续降低的出生率也是 一个重大问题,在几十年后将可能引发劳动力的短缺这一全球性的大灾 难。 这个灾难...
Why productivity growth is declining in advanced economies Two waves have dragged down productivity growth by 1.9 percentage points on average across countries since the mid-2000s (Exhibit 3). The waning of a boom that began in the 1990s with the first information and communications technology (IC...
The environmental gain of population control shows that there are many positives to this regulation. With an ever increasing population, scientists are not sure that theearthcan provide for the growing population. Humanity has been the sole reason for air pollution and population control is a way ...
The United States is facing a housing crisis: Affordable housing is inadequate, while luxury homes abound (充裕), and homelessness remains a persistent problem. Despite this, popular culture and the housing industry market hap...
因此选项C. The answer is not what you might think.(答案可能不是你想的那样。)中包含这种否定意味,故选C。 (2)题详解: 结合后文的But you'd be wrong, declining birth rate is a major problem in many developing regions too, which might cause catastrophic global shortages of work force within...
(especially since 80% of the world's people now live in such nations),but you'd be wrong,Declining birth rate is a major problem in many developing regions too,which might cause catastrophic global shortages of work force within a few decades. A great decline in young work force is ...
It is observed that in many countries not enough students choose science subjects in university in many countries. What are the reasons for this problem? What are the effects on society? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write ...
Explain why the world population growth rate is increasing. Populations: A population is biologically defined as all of the organisms of a given species which are capable of inter-breeding, while residing in one specific geographical area. However, a population can also be socially defined as ...