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A. Land bridge B. Air/Sea C. Sea train D. Piggyback
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更多“Currently, different types of …”相关的问题
A．Land bridge
B．Air／sea
C．Sea train
D．Piggyback
A．Sea／air
B．Air／road
C．Sea／train
D．Piggyback
A. sea/air B. mini-bridge C. land bridge D. air/road
【A popular service that has attercted the interest of companies and has home users alike is the sending of voice signals over an IP-based network, such as the Internet. The practice of making telephone calls over the internet has had a number of different names, including packet voice, voice over packet, voice over the internet, internet telephone, and Voice over Ip（Voip）. But it appears the industry has settled on the term”Voice ove IP” in reference to the internet protocol, which controls the transfer of data over the internet. There are currently three ways to deliver VoIp to users, the first technique is found at the corporate level. Many companies are offering VoIP systerms that operate over a local area network. These systems involve a fair amount of equipment, such as VoIP servers, special IP-enabled telephones, and routers that can direct telephone calls. Today a large portion of corporate sites have converted their older internal telephone systems to VoIP systems that opreate over a LAN, thus converging two systems into one. A second common solution is the one often encountered at home. Using existing telephones, a special converter is added between the telephone and a high speed internet（DSL or cable modem）connection. The converter digitizes the voice signal and creates a stream of packets that are then sent over an ip connection.The third technique involves smart cell phones. Never cell technologies are all packet-based, thus requiring a telephone call to be converted to digital packets and sending those packets over IP networks.】
From the paragraph above，a popular service that has attracetd the interest of companies and home users,is termed as （） . The data transfer over the Internet is controlled by the （） . At corporate level, many companies have replaced their older internal telephone systerms with （） that oprerate over a local area network.
A、voice over the internet B、voice over packet C、Voice over IP D、internet telephony A、packet B、internet protocol C、industry D、VoIp servers A、VoIP systems B、IP-enablde telephones C、VoIP servers D、routers
years in the UK we have had a very large increase in the number of couples who get divorced
After 1969 and the Divorce Law Reform. Act we had a very rapid increase in the number of divorces.The rate increased steadily and in recent years has increased much more rapidly.But there are also quite a lot of people who do actually get married.At present the marriage rate in the UK is about 70 per cent, which has gone down since the number of people who marry has gone down qui te a lot in the last 20 years, but more significantly in the last 10 years.Quite high proportions of people now live together without marrying, and, for example, 40 per cent of children born in the UK are born to couples who aren't married or are born to lone parents.There are quite a large number of lone parent families, 90 per cent of these are headed by a woman rather than a man
The average family size now in the UK is 1.8 children per couple, which
Means that there’s been quite a decline in the birth rate in the UK along with other European countries.
21.What does the passage mainly discuss？()
A.The declining divorce rate in the UK.
B.Trends in marriage and divorce in the UK.
C.The increasing divorce rate in the UK.
22.During the last ten years,（）
A.the marriage rate has gone down more rapidly in the UK
B.the marriage rate has gone up a lot in the UK
C.40% of children were born to unwed couples in the UK
23.According to the passage, the cohabitation rate in the UK tends to ___
A.decline
B.soar
C.stay stable
24.According to the passage, which of the following statements is NOT true？
A.The highest divorce rate was around 1969.
B.The marriage rate has gone down in recent years.
C.The marriage rate is currently 70 percent.
25.The last paragraph tells us（）
A.the birth rate in the UK is increasing at the moment
B.the birth rate in other European countries keeps increasing
C.the birth rate in the UK is decreasing rapidly now
A.continually
B.steadily
C.continuously
D.currently
