【单选题】97:The difference between the mobile ISDN and MPDS isthat
A. the mobile ISDN is charged by connection time and MPDS is charged by lVlbits transferred B. the mobile ISDN is charged by Mbits transferred and MPDS is charged by connection time C. there is no difference between the mobile ISDN and MPDS D. the communication fee of the mobile ISDN is inexpensive than that of MPDS
A. the mobile ISDN is charged by connection time and MPDS is charged by lVlbits transferred B. the mobile ISDN is charged by Mbits transferred and MPDS is charged by connection time C. there is no difference between the mobile ISDN and MPDS D. the communication fee of the mobile ISDN is inexpensive than that of MPDS
举一反三
- Inmarsat-C系统能够提供的业务是______。 A: 卫星电话 B: 卫星电传 C: MPDS D: ISDN
- The soldier was with neglecting his duty. A: A. charged B: B. conducted C: C. charged D: D. committed
- When an oligarch alone chooses the level of production that maximizes profits. It Charges A: The price charged by a monopoly is greater than the price charged by a competitive market B: A price less than that charged by a monopoly and greater than that charged by a competitive market C: The price charged in a monopoly or competitive market D: Less than the price charged in a monopoly or competitive market.
- You ___ spend too much time on your smart mobile phone.
- The time spent on desktop computers and mobile devices now exceeds time spent in front of the television.