Which of the following peoples were the ancestors of the Welsh?

Who is the writer of The Flying Hat?

_____ from the top of the tower ,the south foot of the mountain is a sea of trees . ( )

_____ from the top of the tower ,the south foot of the mountain is a sea of trees .

Ancient Babylonian physicians were among the first to investigate the character an course of diseases scientifically,　　　　　　　　　　　　　　　　　　A　　　　　　　　　　　　 Balthough they frequently attributed the causes of those ailments to the anger of gods or demons. No error　　C　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D　　　　　　　　　　　　　　 E

Paul made a nice cage ______ the little sick bird till it could fly.

Among the last groups of people to accept the new model were religious groups, who still ______ the idea that the earth was the centre of the universe.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

BThree years ago, five parrots were set free in a wild place of Arizona, thousands of miles from the Channel Islands in Jersey where they had been looked after by zookeepers. No evolutionary strategies informed them how to behave in this new landscape of mountainous pine forest unoccupied by their kind for 50 years. To the researchers’ surprise, they failed to make contact with a group of wild parrots imported from Mexico and set free at the same time. Within 24 hours the reintroducing ended in failure, and the poor birds were back in cages, on their way to the safety of the Arizona reintroduction programme.Ever since then, the programme has enjoyed great success, mainly because the birds now being set free are Mexican birds illegally caught in the wild, confiscated (没收) on arrival north of the border, and raised by their parents in the safety of the programme. The experience shows how little we know about the behaviour and psychology(心理) of parrots, as Peter Bennett, a bird researcher, points out: “Reintroducing species of high intelligence like parrots is a lot more difficult. People like parrots, always treating them as nothing more than pets or valuable ‘collectables’.”Now that many species of parrot are in immediate danger of dying out, biologists are working together to study the natural history and the behaviour of this family of birds. Last year was an important turning point: conservationists founded the World Parrot Trust, based at Hayle in Cornwall, to support research into both wild and caged birds.Research on parrots is vital for two reasons. First, as the Arizona programme showed, when reintroducing parrots to the wild, we need to be aware of what the birds must know if they are to survive in their natural home. We also need to learn more about the needs of parrots kept as pets, particularly as the Trust’s campaign does not attempt to discourage the practice, but rather urges people who buy parrots as pets to choose birds raised by humans.55. What do we know about the area where the five parrots were reintroduced?

Passage TwoQuestions 26 to 30 are based on the following passage.①The threat of a global outbreak (疾病大爆发) of bird flu makes it urgent for the international community to cooperate effectively. Wealthy countries will have to provide hundreds of millions of dollars for the testing and production of medicines necessary for treating patients suffering from bird flu. Developing countries, particularly in Southeast Asia, where the bird flu virus (病毒) has spread since 1997, must work out special programs so that farmers will not hide signs of possible outbreaks. In addition, the way such farm birds as chickens and ducks are traditionally raised and marketed in the developing world should be changed; there should be more distance between the birds and their keepers. Countries should deal with the disease with joint effort. If one country is inadequately prepared, it will be a threat to every other country.②The potential effects of a national outbreak of bird flu are enormous. Firstly, an outbreak may kill large numbers of people. World Health Organization (WHO) estimates that an outbreak similar to the mild Hong Kong flu of 1968 could kill as many as 7.4 millions people. If it were as dangerous as the 1918 Spanish flu, which killed 50 million, the number would be much higher. Secondly, such an outbreak may cause great financial damage. The latest outbreak of bird flu, which began in December 2003, has cost Southeast Asia more than $10 billion and depressed its GDP(gross domestic product) by 1.5 percent. If a new outbreak of bird flu were to last for a whole year, $800 billion would be lost.③Despite the 124 human cases and 63 deaths from bird flu since December 2003, the virus remains mainly a disease of animals. However, the more animals that die of the disease, the more chances it has of spreading to people. Large numbers of dead or dying birds mean that more people will be exposed to the virus and change into a virus with new characteristics. If the international community works together efficiently, man can surely prevent such a virus and possibly save millions of lives.26. Faced with the threat of a global outbreak of bird flu, the international community should ________.

The lenient decision of the dean caused anger among the professors.

Which of the following is not among the basic features of a relational database?