Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation. Why does the woman want the man to sign up for the course
A. He shows much interest in the course.
B. He plays an instrument the group needs.
C. She helps him to improve his playing skill.
D. She thinks he’s the best musician at the colleg
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Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. According to the passage, at which age was children’s understanding of language established
A. Six.
B. Seven.
C. Five.
D. Eight.
Questions 29 and 30 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. What is NOT the real function of Microsoft’s leading product Windows
A. To provide e-mail and the Internet service.
B. To work as a basic program for P
C. To dominate the world market.
D. To run some specific applications.
Question 26 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, listen to the news.
A. To encourage hackers to attack big companies.
B. To knock some unsecured websites offline.
C. To get some analysis data for preventing attacks.
D. To prove hacker’s professional skills on computer.
Both bus and tree topologies are characterized by the use of multipoint (1). For the bus, all stations attach, through appropriate hardware (2)known as a tap, directly to alinear transmission medium, or bus. Full-duplex operation between the station and the tap allowsdata to be transmitted onto the bus and received from the (3). A transmission from anystation propagates the length of the medium in both directions and can be received by all other(4). At each end of the bus is a (5), which absorbs any signal, removing it from thebus. (5)是()
A. tap
B. repeat
C. terminator
D. concentrator