单选题______ he first heard of Ba Jin, the great Chinese writer.

单选题In our body—conscious society. the pressure has never been greater for students to look beautiful.

单选题Should a party request cancellation of the contract without a valid reason, it shall pay for all the economic losses that the other party may suffer. A.如果一方不提出任何理由就和另一方断绝关系，将承担对方提出的一切经济损失。 B.如果一方无当理由而提出取消合同，必须赔偿另一方因此而遭受的所有经济损失。 C.如果一方毫无理由地终止与另一方的联系，将会使对方遭受重大经济损失。 D.如果一方与另一方终止合同而提不出合理的原因，必须赔偿对方提出的一切经济损失。

单选题If you desire an interview, I shall be most happy to call in person, on any day and at any time you may appoint.

单选题His office on the fortieth floor of a skyscraper in the center of New York City is the world______.

单选题I needn't have brought so large amount of money. There is nothing worth ______.

单选题As this business is done on principal-to-principal basis, we will not consider paying any commission.

单选题This was because bacteria entered the cuts in the patients" body and started infection.

单选题From this evidence, the team says the probability of a person becoming infected decreases with age.

单选题According to the best historical and archaeological evidence, it is estimated that it took about 800 thousand to 1 million years for the earth's population to reach the 250 total which existed at the end of the first century 'after Christ. For some time after that, disease, famine, and war kept the population increase down to a fraction of 1 percent a year so that more than 15 centuries passed before the population reached 500 million. But in the next 250 years, up to 1850, the population of the world shot up to the 1 billion mark, and today it has reached 3 billion. It is predicted by United Nations investigators that in the next 35 years the population of the world will double. When experts are asked what the most effective measure which overpopulation poses, they reply that at least three measures can be considered: (1) increasing sources and supply of food for underdeveloped countries; (2) increasing the industrialization of underdeveloped countries; (3) regulating conception and births. The experts add, however, that none of the proposed measures Can be effective by itself, that all must be combined into an integrated program. They also agree that without some regulation of conceptions and births, any other measures are doomed to failure.

单选题According to the last paragraph, we know that the author thinks ______.

单选题[此试题无题干]

单选题Last year I visited the Great Wall, ______ Beijing is famous in the world. A. for which B. for that C. in which D.what

单选题I greatly/regret that I'm unable to attend the important sales meeting next Monday.

单选题It is moved that the experiment ______ right now.

单选题If a student was thought to have broken rules, he has to ______.

单选题Where is Angel Falls?

单选题For your safety, the electrical appliance can only operate when it has been correctly mounted on a dry and cool base. A.你只有在干燥通风的地方操作这一台电子仪器才安稳。 B.只有在干燥通风的场所才能使电子仪器持续运转。 C.为了安全起见，本电器设备只有安装在通风阴凉处才能确保其正常运行。 D.为了安全起见，本电器设备只有正确安装在干燥阴凉的基座上才能运行。

单选题Hollywood's true heroes are losing their jobs. Stunt people (替身演员) who entertained cinema-goers by falling for the sky, Swimming with sharks and driving fast cars have been replaced by technology. After generations of street fights, high falls, and setting fire to themselves, these people have had nearly all their work replaced by computers. The most dangerous and costly stunts can now be achieved by mixing computer picture with live action. In the mid-1990s there were 12,000 registered stunt people, but more than half of them 'had difficulty finding work. Sometimes, six or seven teams would be working on a film. Then, after a few days, the producers would come in and say, "You can go home." The reason was simple: cost. Computer technology made it possible to create stunts which would either be too expensive or too dangerous to attempt. With the rise of digital technology (数字技术), insurance companies became more reluctant to cover real stunts. "If they know it can be done safely with visual effects, the companies will not insure real stunts," said a stunt person. Many in their industry believe stunt people should develop expertise in the new technology, acting as advisers on the virtual stunts. Some, however, think that stunt people can survive in their traditional careers. They believe that audiences won't accept stunts produced by computers for too long.

单选题Our new sales manager found out that ______ the job done is not as easy as it first appears.