单选题With his donation, we can now ______the possibility that money won't arrive when planning the program.

单选题The British government often says that furnishing children with ______ to the information superhighway is a top priority.

单选题The passage suggests which of the following about the increased resistance to harmful root fungi that some Plants infected with mycorrhizal fungi seem to exhibit?

单选题Of the two toys, the child chose ______.

单选题__________, the training will help you become better at what you do.

单选题Should English classes be ______at the elementary or primary school level in countries where it is not the native language? A required B. necessary C. selected D. permanent

单选题You must have the experience that you find your voice______on the telephone.

单选题Did the letter arrive ______ or through the post? A. by your hands B. by hand C. in hand D. at hand

单选题 There are many kinds of metals, ______ its special properties.

单选题At first the institute refused to purchase the telescope, but this decision was ______ revised.

单选题Until the late 1940s, when television began finding its way into American homes, companies relied mainly on print and radio to promote their products and services. The advent of television (1) a revolution in product and service. Between 1949 and 1951, advertising on television grew 960 percent. Today the Internet is once again (2) promotion. By going online, companies can communicate instantly and directly with prospective customers. (3) on the World Wide Web includes advertising, sponsorships, and sales promotions (4) sweepstakes, contests, coupons, and rebates. In 1996 World Wide Web advertising revenues (5) $ 300 million. Effective online marketers don't (6) transfer hard-copy ads to cyberspace. (7) sites blend promotional and non-promotional information indirectly delivering the advertising messages. To (8) visits to their sites and to create and (9) customer loyalty, companies change information frequently and provide many opportunities for (10) . A prototype for excellent (11) promotion is the Ragu Web site. Here visitors can find thirty-six pasta recipes, take Italian lessons, and view an Italian film festival, (12) they will find no traditional ads. (13) subtle is the mix of product and promotion that visitors hardly know an advertising message has been (14) . Sega of America, maker of computer games and hardware, uses its Web site for a (15) of different promotions, such as (16) new game characters to the public and supplying Web surfers the opportunity to (17) games. Sega's home page averages 250,000 visits a day. To heighten interest in the site, Sega bought an advertising banner on Netscape (18) increasing site visits by 15 percent. Online (19) in Quaker Oats' Gatorade promotion received a free T-shirt in exchange for answering a few questions. Quaker Oats reports that the online promotion created product (20) and helped the company know its customers better.

单选题According to the author, the Saudi education system is characterized by its excessive emphasis on

单选题One of the real services of the historical novel is not that it can be a substitute for history, but that it can be a(n) Uextension/U.

单选题Bob fails to attend the evening school. He______sick, because he never asks for leave.

单选题—Could I borrow your dictionary? —I"d get it for you ______ I could remember who last borrowed it.

单选题We didn't plan our art exhibition like that but it ______ very well.A. worked outB. tried outC. went onD. carried on

单选题Thepriceofhousesgoesupagain,partly_________therequirementofyoungpeople.

单选题________it comes to self-driving cars, safety is always the number-one concern.