Certain animals have an intuitive awareness of quantities, They know without analysis the difference between a number of objects and a smaller number. In his book The Natural History of Selbourne (1786), the naturalist Gilbert White tells how he surreptitiously removed one egg a day from a plover’s nest, and how the mother laid another egg each day to make up for the missing one. He noted that other species of birds ignore the absence of a single egg but abandon their nests if more than one egg has been removed. It has also been noted by naturalists that a certain type of wasp always provides five — never four, never six — caterpillars for each of their eggs so that their young have something to eat when the eggs hatch. Research has also shown that both mice and pigeons can be taught to distinguish between odd and even numbers of food pieces.
These and similar accounts have led some people to infer that creatures other than human can actually count. They
A. Careful training is required to teach animals to perform tricks involving numbers.
B. Animals cannot "count" more than one kind of object.
C. Of all animals, dogs and horses can count best.
D. Although some animals may be aware of quantities, they cannot actually count.
Kuwait is a country which is quite small, but which is very rich. It has a population of a little more than a million and it is situated at the north end of the Persian Gulf, between Iraq on the north and Saudi Arabia on the south. This small desert country is one of the world’s leading oil producers and it has about 15 percent of the world’s known petroleum (石油) reserves. Since the discovery of oil in 1938, Kuwait rulers have turned the country into a prosperous(繁荣) welfare (福利) state. It has free primary and secondary education, free health care and social services, and the Kuwait do not have to pay any personal income tax for those services. The rate (比率) of literacy (识字,有文化) is high and constantly growing. The University of Kuwait was opened in 1966, but many of the Kuwait students still study in colleges and universities abroad, at state expense. Ku- wait is an Arab country, about 99 percent of the people who live there are Moslems. But fewer than half of
A. Because there are many immigrants who have brought science and technology.
B. Because it is rich in oil.
C. Because it has fewer people than any other country in the world.
D. Because its education is highly developed.
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据海关统计，浙江省纺织纱线、织物及制品、床垫、寝具及类似品出口额从2004年的11.50亿美元上升到2009的31.44亿美元，占出口额的比重从11.4%上升到13.7%，上升2.3个百分点。全部国有及年产品销售收入500万元以上的非国有纺织企业(即规模以上纺织企业，下同)出口交货值占销售产值的比重上升。2009年，全省规模以上纺织企业实现出口交货值320.05亿元，占销售产值的30.7%，不仅比2006年提高3.3个百分点，而且比制造业高4.4个百分点。 根据国家统计局工业经济效益评价考核体系测算，2009年，浙江省规模以上纺织企业综合经济效益指数达到132.38，比2004年上升50.55点。 纺织业生产、销售增长速度低于制造业平均水平，但利润、利税增幅明显快于制造业。2004-2009年，浙江省规模以上纺织企业实现工业增加值、产品销售收入年均增幅分别为12.8%和12.9%，比同期制造业平均水平低2.9和2.6个百分点；实现利润、利税额年均增幅分别为118.4%和29.3%，比制造业平均水平高86.6和6个百分点。 2004-2009年浙江省规模以上纺织业综合经济效益指数
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