单项选择题

A．Not to subscribe to the journal.
B．To buy the latest issue of the magazine.
C．To find a better science journal in the library.
D．Not to miss any chance to collect useful information.
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单项选择题
A．The company has trouble printing a schedule.B．The speakers arrived at the station late.C．The train seldom arrives on time.D．The schedule has been misprinted.
A．The company has trouble printing a schedule.
B．The speakers arrived at the station late.
C．The train seldom arrives on time.
D．The schedule has been misprinted.
单项选择题
The author suggests in the last paragraph that________.
A．net inhabitants should not let security. measures affect their joy of surfing the Internet
B．we should make full use of the Internet before security measures are strengthened
C．influential businessmen should give priority to the improvement of Net security
D．we should alert the most influential businessmen to the importance of security
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