The underlined word in Paragraph 3 refers to______.
A. promoted
B. unemployed
C. well-trained
D. registered
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广播通信技术实际上是属于非计算技术范畴的多媒体。()
The bankruptcy of the Internet may be caused by______.
A. resources exchange
B. individual fraud
C. anonymous funds moving
D. lack of management
According to the survey, over two-thirds of all teenagers in the UK______.
A. eat sandwiches for lunch
B. don"t always use soap when washing their hands
C. eat lunch with their hands
D. don"t always wash their hands after visiting the toilet or before lunch at school
防火墙对内部网起到了很好的保护作用，并且可以起到坚不可摧的作用。()
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