用于肿瘤非特异性主动免疫治疗
A. 干扰素
B. 卡介苗
C. 瘤苗
D. 免疫效应细胞
E. 免疫毒素
Ironically, in the United States, a country of immigrants, prejudice and discrimination continue to be serious problems. There was often (1) between each established group of (2) and each succeeding group. As each group became (3) financially successful, and more powerful, they (4) newcomers from full participation in the society. Prejudice and discrimination are (5) U.S. history, (6) , this prejudicial treatment of different groups is (7) more unjust than with black Americans. Blacks had distinct (8) . For the most part, they came to the "land of opportunity" as slaves and were not free to keep their (9) and cultural traditions. (10) most European immigrants, blacks did not have the protection of a support group; sometimes slave owners separated members of (11) family. They could not mix easily with the (12) society either because of their skin color. It was difficult for them to (13) the American culture. Even after they became flee people, they were still discriminated (14) in employment, housing, education, and even in public (15) , such as restrooms.
A. by
B. to
C. for
D. against
Ironically, in the United States, a country of immigrants, prejudice and discrimination continue to be serious problems. There was often (1) between each established group of (2) and each succeeding group. As each group became (3) financially successful, and more powerful, they (4) newcomers from full participation in the society. Prejudice and discrimination are (5) U.S. history, (6) , this prejudicial treatment of different groups is (7) more unjust than with black Americans. Blacks had distinct (8) . For the most part, they came to the "land of opportunity" as slaves and were not free to keep their (9) and cultural traditions. (10) most European immigrants, blacks did not have the protection of a support group; sometimes slave owners separated members of (11) family. They could not mix easily with the (12) society either because of their skin color. It was difficult for them to (13) the American culture. Even after they became flee people, they were still discriminated (14) in employment, housing, education, and even in public (15) , such as restrooms.
A. intention
B. enforcement
C. tendency
D. tension
Most American magazines and newspapers reserve 60 percent of their pages for ads. The New York Times Sunday edition (1) may contain 350 pages of advertisements. Some radio stations devote 40 minutes of every hour to (2) . Then there is television. According to one estimate, American youngsters sit (3) three hours of television commercials each week. By the time they graduate from high school, they will have been (4) 360,000 TV ads. Televisions advertise in airports, hospital waiting rooms, and schools. Major sporting (5) are now major advertising events. Racing cars serve as high speed (6) Some athletes receive most of their money from advertisers. One (7) basketball player earned $ 3.9 million by playing ball. Advertisers paid him nine times that much to (8) their products. There is no escape. Commercial ads are displayed on wails, buses, and trucks. They decorate the inside of taxis and subways—even the doors of public toilets. (9) messages call to us in supermarkets, stores, elevators—and (10) we. are on hold on the telephone. In some countries so much advertising comes through the mail that many recipients proceed directly from the mailbox to the nearest wastebasket to (11) the junk mail. (12) Insider’s Report, published by McCann-Erickson, a global advertising agency, the estimated (13) of money spent on advertising worldwide in 1990 was $275.5 billion. Since then, the figures have (14) to $ 411.6 billion for 1997 and a projected $434.4 billion for 1998. Big money ! What is the effect of all of this One analyst (15) it this way: "Advertising is one of the most powerful socializing forces in the culture. Ads sell more than products. They sell images, values, goals, concepts of who we are and who we should be. They shape our attitudes and our attitudes shape our behavior. "
A. raised
B. elevated
C. roared
D. soared