v-mail service may provide a mail service together with ______. [br] Internet co

游客2024-07-31  11

问题 v-mail service may provide a mail service together with ______. [br] Internet companies feel confident about the v-mail market as ______.

选项 A、the monthly fee of v-mail service has dropped a lot
B、there are a great number of Internet users each week
C、cheap video-mail offerings have recently been introduced
D、a great number of Internet users send messages each week

答案 D

解析
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