Which group has made major contributions to the trend in US universities?
A. Students from Iran.
B. Students from Brazil.
C. Students from Kuwait.
D. Students from China.
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[音频]What is the main idea of the news report?
A. China provides education loans to African countries.
B. Many Africans study in China with financial assistance.
C. There is a trend of learning Chinese in African countries.
D. African students are unhappy about Chinese education.
What will Violet Bwalya of Zambia study after finishing her study of Chinese?
A. Politics.
B. Science.
C. Finance.
D. Medicine.
Which one is mentioned as a problem affecting the quality of Chinese education?
A. Teaching methods.
B. Lack of funds.
C. Language communication.
D. Lack of professors.
以下关于局域网拓扑结构的描述中,错误的是
A. 总线型局域网所有节点都通过网卡连接到一条作为公共传输介质的总线上
B. 当一个节点通过总线以“广播”方式发送数据时其他节点只能处于接收状态
C. 同一时刻出现两个或以上节点发送数据就会出现“冲突”
D. 传统的总线型Ethernet节点获得发送数据帧的时间是确定的
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