单选题
单选题
Political controversy about the public-land policy of the United States began with the America Revolution. (1) , even before independence from Britain was (2) , it became clear that (3) the dilemmas surrounding the public domain might prove necessary to (4) the Union itself.
At the peace negotiation with Britain, Americans obtained a western (5) at the Mississippi River. Thus the new nation secured for its birthright a vast internal empire rich in agricultural and mineral resources. But (6) their colonial charters, seven states claimed (7) of the western wilderness. Virginia’s claim was the largest, (8) north and west to encompass the later states. The language of the charters was (9) and their validity questionable, but during the war Virginia reinforced its title by sponsoring Colonel Georgia Rogers Clark’s 1778 (10) to Vicennes and Kaskaskia, which (11) America’s trans Appalachian pretensions at the peace table.
The six states holding no claim to the transmontane region (12) whether a confederacy in which territory was so unevenly apportioned would truly prove what it claimed to be, a union of equals. Already New Jersey, Delaware, Rhode Isaland, and Maryland were (13) the smallest and least populous of the states. (14) they levied heavy taxes to repay state war debts, their larger neighbors might retire debts out of land-sale proceeds. (15) by fresh lands and low taxes, people would desert the small states (16) the large, leaving the former to fall (17) bankruptcy and eventually into political subjugation. All the states shared in the war effort, how then could half of them "be left no sink under an (18) debt, whilst others are enabled, in a short period, to (19) all their expenditures from the hard earnings of the whole confederacy" As the Revolution was a common endeavor, (20) ought its fruits, including the western lands be a common property.
A:shifting B:ranging C:stretching D:covering
Political controversy about the public-land policy of the United States began with the America Revolution. (1) , even before independence from Britain was (2) , it became clear that (3) the dilemmas surrounding the public domain might prove necessary to (4) the Union itself.
At the peace negotiation with Britain, Americans obtained a western (5) at the Mississippi River. Thus the new nation secured for its birthright a vast internal empire rich in agricultural and mineral resources. But (6) their colonial charters, seven states claimed (7) of the western wilderness. Virginia’s claim was the largest, (8) north and west to encompass the later states. The language of the charters was (9) and their validity questionable, but during the war Virginia reinforced its title by sponsoring Colonel Georgia Rogers Clark’s 1778 (10) to Vicennes and Kaskaskia, which (11) America’s trans-Appalachian pretensions at the peace table.
The six states holding no claim to the transmontane region (12) whether a confederacy in which territory was so unevenly apportioned would truly prove what it claimed to be, a union of equals. Already New Jersey, Delaware, Rhode Isaland, and Maryland were (13) the smallest and least populous of the states. (14) they levied heavy taxes to repay state war debts, their larger neighbors might retire debts out of land-sale proceeds. (15) by fresh lands and low taxes, people would desert the small states (16) the large, leaving the former to fall (17) bankruptcy and eventually into political subjugation. All the states shared in the war effort, how then could half of them "be left no sink under an (18) debt, whilst others are enabled, in a short period, to (19) all their expenditures from the hard earnings of the whole confederacy" As the Revolution was a common endeavor, (20) ought its fruits, including the western lands be a common property.
A:shifting B:ranging C:stretching D:covering
If you have ever longed for a meat substitute that smelt and tasted like the real thing, but did not involve killing an animal, then your order could be ready soon. Researchers believe it will soon be possible to grow cultured meat in quantities large enough to offer the meat industry an alternative source of supply.
Growing muscle cells (the main component of meat) in a nutrient broth is easy. The difficulty is persuading those cells to form something that resembles real meat. Paul Kosnik, the head of engineering at a firm called Tissue Genesis, is hoping to do it by stretching the cells with mechanical anchors. This encourages them to form small bundles surrounded by connective tissue, an arrangement similar to real muscle.
Robert Dennis, a biomedical engineer at the University of North Carolina, believes the secret of growing healthy muscle tissue in a laboratory is to understand how it interacts with its surroundings. In nature, tissues exist as elements in a larger system and they depend on other tissues for their survival. Without appropriate stimuli from their neighbours they degenerate. Dr Dennis and his team have been working on these neighbourly interactions for the past three years and report some success in engineering two of the most important--those between muscles and tendons, and muscles and nerves.
At the Touro College School of Health Sciences in New York, Morris Benjaminson and his team are working on removing living tissue from fish, and then growing it in culture. This approach has the advantage that the tissue has a functioning system of blood vessels to deliver nutrients, so it should be possible to grow tissue cultures more than a millimetre thick--the current limit.
Henk Haagsman, a meat scientist at the University of Utrecht in the Netherlands, is trying to make minced pork from cultured stem cells with the backing of Stegeman, a sausage company. It could be used in sausages, burgers and sauces.
But why would anyone want to eat cultured meat, rather than something freshly slaughtered and just off the bone One answer, to mix metaphors, is that it would allow vegetarians to have their meatloaf and eat it too. But the sausage-meat project suggests another reason: hygiene. As Ingrid Newkirk of PETA, an animal-rights group, puts it, "no one who considers what’s in a meat hot dog could genuinely express any reluctance at eating a clean cloned meat product."
Cultured meat could be grown in sterile conditions, avoiding Salmonella, E. coli and other nasties. It could also be made healthier by adjusting its composition--introducing. heart-friendly omega-3 fatty acids, for example. You could even take a cell from an endangered animal and, without threatening its extinction, make meat from it.
From the first two paragraphs, we know that
A:meat grown in lab, rather than in the form of animals, could soon be on the menu. B:cultured meat may taste as they are newly produced. C:it is hard to culture the main component of meat into the form of cells. D:by stretching the cells with mechanical anchors, we can get connective tissues.
Political controversy about the public-land policy of the United States began with the America Revolution. (1) , even before independence from Britain was (2) , it became clear that (3) the dilemmas surrounding the public domain might prove necessary to (4) the Union itself.
At the peace negotiation with Britain, Americans obtained a western (5) at the Mississippi River. Thus the new nation secured for its birthright a vast internal empire rich in agricultural and mineral resources. But (6) their colonial charters, seven states claimed (7) of the western wilderness. Virginia’s claim was the largest, (8) north and west to encompass the later states. The language of the charters was (9) and their validity questionable, but during the war Virginia reinforced its title by sponsoring Colonel Georgia Rogers Clark’s 1778 (10) to Vicennes and Kaskaskia, which (11) America’s trans-Appalachian pretensions at the peace table.
The six states holding no claim to the transmontane region (12) whether a confederacy in which territory was so unevenly apportioned would truly prove what it claimed to be, a union of equals. Already New Jersey, Delaware, Rhode Isaland, and Maryland were (13) the smallest and least populous of the states. (14) they levied heavy taxes to repay state war debts, their larger neighbors might retire debts out of land-sale proceeds. (15) by fresh lands and low taxes, people would desert the small states (16) the large, leaving the former to fall (17) bankruptcy and eventually into political subjugation. All the states shared in the war effort, how then could half of them "be left no sink under an (18) debt, whilst others are enabled, in a short period, to (19) all their expenditures from the hard earnings of the whole confederacy" As the Revolution was a common endeavor, (20) ought its fruits, including the western lands be a common property.
A:shifting B:ranging C:stretching D:covering
If you have ever longed for a meat substitute that smelt and tasted like the real thing, but did not involve killing an animal, then your order could be ready soon. Researchers believe it will soon be possible to grow cultured meat in quantities large enough to offer the meat industry an alternative source of supply.
Growing muscle cells (the main component of meat) in a nutrient broth is easy. The difficulty is persuading those cells to form something that resembles real meat. Paul Kosnik, the head of engineering at a firm called Tissue Genesis, is hoping to do it by stretching the cells with mechanical anchors. This encourages them to form small bundles surrounded by connective tissue, an arrangement similar to real muscle.
Robert Dennis, a biomedical engineer at the University of North Carolina, believes the secret of growing healthy muscle tissue in a laboratory is to understand how it interacts with its surroundings. In nature, tissues exist as elements in a larger system and they depend on other tissues for their survival. Without appropriate stimuli from their neighbours they degenerate. Dr Dennis and his team have been working on these neighbourly interactions for the past three years and report some success in engineering two of the most important--those between muscles and tendons, and muscles and nerves.
At the Touro College School of Health Sciences in New York, Morris Benjaminson and his team are working on removing living tissue from fish, and then growing it in culture. This approach has the advantage that the tissue has a functioning system of blood vessels to deliver nutrients, so it should be possible to grow tissue cultures more than a millimetre thick--the current limit.
Henk Haagsman, a meat scientist at the University of Utrecht in the Netherlands, is trying to make minced pork from cultured stem cells with the backing of Stegeman, a sausage company. It could be used in sausages, burgers and sauces.
But why would anyone want to eat cultured meat, rather than something freshly slaughtered and just off the bone One answer, to mix metaphors, is that it would allow vegetarians to have their meatloaf and eat it too. But the sausage-meat project suggests another reason: hygiene. As Ingrid Newkirk of PETA, an animal-rights group, puts it, "no one who considers what’s in a meat hot dog could genuinely express any reluctance at eating a clean cloned meat product."
Cultured meat could be grown in sterile conditions, avoiding Salmonella, E. coli and other nasties. It could also be made healthier by adjusting its composition--introducing. heart-friendly omega-3 fatty acids, for example. You could even take a cell from an endangered animal and, without threatening its extinction, make meat from it.
A:meat grown in lab, rather than in the form of animals, could soon be on the menu. B:cultured meat may taste as they are newly produced. C:it is hard to culture the main component of meat into the form of cells. D:by stretching the cells with mechanical anchors, we can get connective tissues.
Kimiyuki Suda should he a perfect customer for Japan’s car-makers. He’s a young, successful executive at an Internet-services company in Tokyo and has plenty of disposable (1) . He used to own Toyota’s Hilux Surf, a sport utility vehicle. But now he uses (2) subways and trains. "It’s not inconvenient at all," he says. (3) , "having a car is so 20th century."
Suda reflects a worrisome (4) in Japan; the automobile is losing its emotional appeal, (5) among the young, who prefer to spend their money on the latest electronic devices. (6) mini-cars and luxury foreign brands are still popular, everything in between is (7) . Last year sales fell 6.7 percent, 7.6 percent (8) you don’t count the mini-car market. There have been (9) one-year drops in other nations: sales in Germany fell 9 percent in 2007 (10) a tax increase. But experts say Japan is (11) in that sales have been decreasing steadily (12) time. Since 1990, yearly new-car sales have fallen from 7.8 million to 5.4 million units in 2007.
Alarmed by this state of (13) , the Japan Automobile Manufacturers Association (JAMA) (14) a comprehensive study of the market in 2006. It found that a (15) wealth gap, demographic changes and (16) lack of interest in cars led Japanese to hold their (17) longer, replace their cars with smaller ones (18) give up car ownership altogether. JAMA (19) a further sales decline of 1.2 percent this year. Some experts believe that if the trend continues for much longer, further consolidation in the automotive sector is (20) .
A:surging B:stretching C:slipping D:shaking
We have never seen such {{U}}gorgeous {{/U}} hills.
A:beautiful B:stretching C:spreading D:rolling
We have never seen such {{U}}gorgeous {{/U}} hills.
A:beautiful B:stretching C:spreading D:rolling
We have never seen such (gorgeous) hills.
A:beautiful B:stretching C:spreading D:rolling
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