单选题He raised his eyebrows and stuck his head forward and ______ it in a single nod, a gesture boy, used then for O. K. when they were pleased.

单选题When plutonium undergoes fission, its atoms break apart, giving off a great deal of energy

单选题For Sauces not only used his ______ in the hold up, but also made his get-away in his own easily recognized family car.

单选题Benjamin Day was only 22 years old when he developed the idea of a newspaper for the masses and launched his New York Sun in 1833, which would profoundly alter journalism by his new approach. Yet, several conditions had to exist before a mass press could come into existence. It was impossible to launch a mass-appeal newspaper without invention of a printing press able to produce extremely cheap newspaper affordable almost to everyone. The second element that led to the growth of the mass newspaper was the increased level of literacy in the population. The then increased emphasis on education led to a concurrent growth of literacy as many people in the middle and lower economic groups acquired reading skills. The trend toward "democratization" of business and politics fostered the creation of a mass audience responsive to a mass press. Having seen.others fail in their attempts to market a mass-appeal newspaper, he forged ahead with his New York Sun, which would be a daily and sell for a penny, as compared to the other dailies that went for six cents a copy. Local happenings, sex, violence, features, and human- interest stories would constitute his content. Conspicuously absent were the dull political debates that still characterized many of the six-cent papers. Within six months the Sun achieved a circulation of approximately 8000 issues, far ahead of its nearest competitor. Day's gamble had paid off, and the penny press was launched. James Gordon Bennett, perhaps the most significant and certainly the most colorful of the individuals imitating Day's paper, launched his New York Herald in 1835, even more of a rapid success than the Sun. Part of Bennett's success can be attributed to his skillful reporting of crime news, the institution of a financial page, sports reporting, and an aggressive editorial policy. He looked upon himself a reformer, and wrote in one of his editorials: "I go for a general reformation of morals... I mean to begin a new movement in the progress of civilization." Horace Greeley was another important pioneer of the era. He launched his New York Tribune in 1841 and would rank third behind the Sun and Herald in daily circulation, but his weekly edition was circulated nationally and proved to be a great success. Greeley's Tribune was not as sensational as its competitors. He used his editorial page for crusades and causes. He opposed capital punishment, alcohol, gambling and tobacco. Greeley also favored women's rights. Greeley never talked down to the mass audience and attracted his readers by appealing to their intellect more than to their emotions. The last of the major newspapers of the penny-press era began in 1851. The New York Times, edited by Henry Raymond, promised to be less sensational than the Sun or the Herald and less impassioned than Greeley. The paper soon established a reputation for objective and reasoned journalism. Raymond stressed the gathering of foreign news and served as foreign correspondent himself in 1859. The Times circulation reached more than 40000 before the Civil

单选题Some pundits that many computers are obsolete before they're even de- signed, which goes a long way toward explaining why the ATM at my grocery store never works.

单选题The intellectually______ enterprise of science depends on free communication. A. depressing B. depressed C. exhilarating D. exhilarated

单选题Although this could be seen as a strength because it allows flexibility, it can also be argued that it invalidates the theory; in this case several people's rights must be relinquished to reach a conclusion. A. given up B. put off C. thought of D. held on

单选题He knows so much about the stars that I am sure it would be impossible to find his______.

单选题Which of the following statement concerning the system of classification in taste is TRUE?

单选题As there was not enough money to bury all dead AIDS {{U}}orphans{{/U}}, 23 babies were interred in a modest cemetery in South Africa before World AIDS Day.

单选题Spiders "hold their planetary seat with assurance" because they are ______.

单选题Digging the garden with a spade is a very ______ task. I am exhausted after such two-hour's work.

单选题We must try to ______ the best of our moral values for our children and grand-children.(2002年春季上海交通大学考博试题)

单选题The most important______for assessment in this contest is originality of design. A. threshold B. partition C. warrant D. criterion

单选题Their first discharge of arrows, stones and two-headed darts which ______ any armour covered the ground.

单选题Many skiers ______ around the fire and drink hot chocolate in the evenings.(2003年中国社会科学院考博试题)

单选题 When the supporting finds were reduced, they should have revised their plan ______.