【单选题】听力原文:W: Hello, Tom. M: Hello, Mother. W: I want to buy David a pet for his birthday. M: Yes, I know. W: What shall I give him? M: Why don't you buy him a dog? He likes dogs because they are friendly. ...
【判断题】One expert believes that TV can have both positive and negative effects, but it all depends on what children are watching. "Content matters," said Deborah L. Line barger, an assistant professor at the...
【单选题】Knowledge management systems are called expert systems because they __________.
A.
provide job-related information to users at all levels of a company
B.
simulate human reasoning by combining a knowledge base and inference rules that determine how the knowledge is applied
C.
process data generated by day-to-day business operations
D.
include e-mail, voice mail, fax, video conferencing, word processing, automated calendars, database management, spreadsheets, and high-speed Internet access