GRE，全稱Graduate Record Examination，中文名稱為美國研究生入學(xué)考試，適用于除法律與商業(yè)外的各專業(yè)。由美國教育考試服務(wù)處(Educational Testing Service，簡稱ETS)主辦，GRE是美國、加拿大的大學(xué)各類研究生院（除管理類學(xué)院，法學(xué)院）要求申請者所必須具備的一個(gè)考試成績，也是教授對申請者是否授予獎(jiǎng)學(xué)金所依據(jù)的最重要的標(biāo)準(zhǔn)。 另有，Generic Routing Encapsulation（通用路由封裝）也簡稱GRE。
8. 科技和社會(huì)變化
Inventions affect the size of populations, which in turn influences the course of history. Some inventions affect population directly: Improvements in sanitation, the development of cured for fatal illnesses, and more effective contraceptive techniques are examples. Some inventions can also have indirect effects on population: techniques that improve crop yields or permit long-term storage of food surpluses make it possible to support a larger population with a given amount of farmland. And improvements in military technology have had dramatic effects on the conduct of war and hence on population size.
9．對能量的要求
Throughout human history a central aspect of technological change has been the quest for new sources of energy to meet the needs of growing populations. That quest has given rise to a succession of energy technologies, each more sophisticated than the last.(animal power---steam-driven machines---internal-combustion engine---nuclear energy---fusion reaction, in which hydrogen atoms are fused into helium.)
Many people believe that societies can meet their growing energy needs by continually investing in more sophisticated technologies. This approach has led to the development of huge nuclear-power plants to replace oil-fueled generators, and it is widely hoped that investment in fusion, an even more complex technology, will eliminate the dangers posed by nuclear power.
The trend toward greater use of nuclear power to generate electricity has become a major social and political issue. Underlying the conflict over the safety of nuclear-power plants is the issue of control.
感謝您閱讀《寫作資料句子23 》一文，出國留學(xué)網(wǎng)(liuxue86.com)編輯部希望本文能幫助到您。
8. 科技和社會(huì)變化
Inventions affect the size of populations, which in turn influences the course of history. Some inventions affect population directly: Improvements in sanitation, the development of cured for fatal illnesses, and more effective contraceptive techniques are examples. Some inventions can also have indirect effects on population: techniques that improve crop yields or permit long-term storage of food surpluses make it possible to support a larger population with a given amount of farmland. And improvements in military technology have had dramatic effects on the conduct of war and hence on population size.
9．對能量的要求
Throughout human history a central aspect of technological change has been the quest for new sources of energy to meet the needs of growing populations. That quest has given rise to a succession of energy technologies, each more sophisticated than the last.(animal power---steam-driven machines---internal-combustion engine---nuclear energy---fusion reaction, in which hydrogen atoms are fused into helium.)
Many people believe that societies can meet their growing energy needs by continually investing in more sophisticated technologies. This approach has led to the development of huge nuclear-power plants to replace oil-fueled generators, and it is widely hoped that investment in fusion, an even more complex technology, will eliminate the dangers posed by nuclear power.
The trend toward greater use of nuclear power to generate electricity has become a major social and political issue. Underlying the conflict over the safety of nuclear-power plants is the issue of control.
感謝您閱讀《寫作資料句子23 》一文，出國留學(xué)網(wǎng)(liuxue86.com)編輯部希望本文能幫助到您。