单项选择题

"v-mail" service may provide a mail service together with ______.

A．pictures and sound
B．letters and documents
C．an "I miss you" message
D．a "Happy Birthday" serenade
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单项选择题
From the last sentence of this passage, we come to know that ______.
A．technology has not prepared itself for the development of v-mail
B．technology is not advanced enough for the development of v-mail
C．advertisers will not show much interest in v-mail business for a while
D．advertisers will show little interest in v-mail business for quite long
单项选择题
More and more people will so on appreciate v-mail service probably because ______.
A．it is very efficient
B．it brings a lot of fun
C．it is very cheap
D．it attracts young people
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