单项选择题

Internet provides ______.

A．consumers with international business opportunities
B．subscribers with a cheap and efficient link
C．formal roles to oversee its users
D．telecommunications services to users

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单项选择题

According to the passage, electronic mail is a way to ______.

A．replace the old mail system
B．get electronics by mail
C．connect the users to the post office
D．communicate by personal computers or computer terminals