The ____ is the lower portion of the uterus. It is approximately two inches long, and it's tubular in shape.
A.vagina
B.cervix
C.thyroid
D.uterus
A.vagina
B.cervix
C.thyroid
D.uterus
Like most wars,a trade war may bring about desired economic or political changes, but in the long run almost everyone suffers ,including those whom the trade war was meant to help.
An efficient carmaker, for example, may ask for limits of foreign imports, hoping to keep its price high without improving the quality of its products. In the end , however , other countries mayretaliate[2] with trade restrictions of their own. Consumers and businesses in both countries are then forced to buy poorly made and expensive domestic products. Trade restrictions might protect a few jobs in inefficient industries,but the whole economy often suffers by becoming less competitive in the international markets.
The most common tools for limiting imports of foreign goods and services are quotas, tariffs,and subsidies. When a country imposes a quota, it limits the quantity of certain foreign products that can be imported. A tariff is a tax placed on goods entering a country , raising the price of imported goods. A government can also use the taxpayers' money to provide a subsidy to local producers , making the price of local goods artificially lower than imported goods.
Trade barriers, like walls betweenfeuding neighbors[3], are usually imposedunilaterally[4] by one country acting on its own to limit the amount of foreign products available to local producer from foreign competition and allow them time to improve their products or lower their prices as long as they are protected from foreign competition by trade barriers.
Although trade restrictions are of dubious economic value, they have been shown to be effective in bringing about political or social change. The refusal of countries to trade and do business with South Africa, for example, was widely seen to be responsible for the decision todismantle the system of apartheid[5].Trade blockades[6] can be useful in forcing countries to change policies that violate human rights or international treaties, but as long as a sufficient number of countries join in the blockade to make it effective.
[1]限额、关税和补贴
[2]报复
[3]有世仇的邻居
[4]单方面地
[5]消除种族隔离制度
[6]贸易封锁
Questions for reading :
Going Forth, The Nations Multiply Unevenly
Despite was, famines, and epidemics, Earth's population is booming ahead to new records—with no end insight.
Every day, the world adds enough people to populate a medium-sized city in the US. In one month, the number of new world citizens equals the population of New York City. Every year, there are 90 million more mouths to feed, more than the total population of Germany.
Several factors are propelling this rapid growth, including an element that is often overlooked the huge number of teenagers who are becoming mothers, particularly in the countries of sub-Saharan Africa In four African nations m Niger, Mali, Sierra Leone, and Ivory Coast—1 out of every 5 adolescent females of childbearing age has a baby annually. The US Bureau of the Census says this high rate of motherhood among teens has helped to maintain the high pace of births across most of the African continent By starting a family early, a typical woman is Somalia, for instance, has seven children during her lifetime. Equally large families are the rule in Zambia, Zaire, Uganda, Mauritania, Mall, Malawi, and Ethiopia.
The current record-holder for fertility is strife-torn Rwanda, where a typical mother has at least eight or nine children. While population experts often focus on Africa's problems, analysts note that teenaged mothers are also far more prevalent in the United States than in France, Germany, Italy, Sweden, or Britain.
This issue— "babies having babies" —has recently gained prominence in the US. Teenaged motherhood in the US has fueled an expansion of the state federal welfare system and brought cries for welfare reform. from lawmakers.
With its high rate of teen births, the US now ranks alongside Indonesia and parts of South America and only modestly ahead of Mexico, India, and Pakistan.
Overall, the fertility rate among Americans remains relatively low at 2.1 births per woman—about the replacement level. Although the US population is expected to climb steadily, from 260 million today to 323 million by 2020, most of that growth will come from immigration
The Census Bureau estimates that in Haiti, where thousands of citizens are trying to flee to the US because of military oppression and poverty, AIDS will cut the annual growth rate during the next 25 years from 2.1 percent to 1.3 percent.
The decline in growth is even slim-per in the Central African Republic, where rates will dip from 2.4 percent to 0.7 percent. In Thailand, which already had low birth rates AIDS will drive population downward to 0.8 percent a year. In the 16 countries that are hit hardest, AIDS will lower populations by 121 million over expected projections by 2020. In Africa, the impact of AIDS is so great that trends toward longer life spans during the past 40 years are being reversed Some nations will suffer declines in average life spans of 10 to 30 years compared with expected life spans without AIDS.
In the US, where AIDS is also a substantial problem, the impact will be lower because the disease is mostly limited to homosexuals and drug users, says Peter Way, a Census Bureau researcher. In many African nations, AIDS is prevalent among the heterosexual population, which sharply boosts infant mortality.
A compelling chapter in the research deals with aging. Today the median age in developed countries is 35, and in developing nations me only 23. By 2020, the corresponding figures will be 42 and 28. Today there are fewer adults over 60 ($25 million), than children under 5 (636 million). As the world population ages, by 2020 the number over 60 will be more than; 1 billion, while those under 5 will total 717 million.
Sub-Saharan African countries______.
A.will have the largest world population by 2020
B.have the highest reproductive rate in the world
C.are only modestly affected by AIDS
D.will have increasingly long life spans
A.都是电子商务了,不再需要PO,简化交易
B.PO的包含的信息很多,在网上交易的时候,需要考虑将PO中包含的信息融合到各个网页上去,让客户挑选而不是再让客户在PO上填写
C.公司当前PO的标准结构是PO头,PO行和PO尾
D.PO行上可以不体现交易的商品名称,只要有个价格就可以了
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!