单项选择题

The reason for the necessity of Continuing Education is that

A．you have to stay current in your discipline.
B．new ideas and technologies are to be discussed.
C．you have just completed your studies.
D．you are just beginning to work.

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单项选择题

What does the author mean by saying gaining momentum on the Internet

A．Becoming more and more serious.
B．Being the most important moment.
C．Having the bigger and bigger impetus.
D．Gaining more velocity and weight.

单项选择题

Badtrans-B is

A．an anti-virus program.
B．an expert on viruses.
C．an anti-virus company.
D．a new virus foun