The Internet is a(66)network of networks which interconnects(67)ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes - long distance collaborations, retrieving free software and documents,(68)library catalogs,(69)in t6 supercomputers - the list of current Internet activities and(70)is large and the range of possible future applications is as unlimited as our imagination.

A．worldwide

B．abroad

C．large

D．extensive

[单选题]A．n internet is a combination of networks connected by()A．modemsB．routersC．switchesD．computers

[单选题]A．n internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ，it will probably pass many (73) until it reaches the router attached to the destination network．A router receives a (74) from a network and pas

[单选题,共用题干题] An internet is a combination of networks connected by (1). When a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a (4) from a network and

[单选题]The Internet is a （）system of interconnected computer networks that use the

[单选题]WWW is a large network of Internet servers providing (75) and other services to terminals running client applications such as a browser.(75)A．modemB．compressionC．hypertextD．encode

[单选题] WWW is a large network of internet servers providing (75)and other services to terminals running client applications such as a browser.(75) A. modemB． compressionC． hypertextD． encode

[单选题]In Internet， (66) used as a barrier to prevent the spread of viruses．(66) A．modomB．firewireC．firewallD．netcard

[单选题]WWW is a large network of Internet servers providing ( )and other services

[单选题]A small network may only connect two computers inside a home to share a sin

[单选题]根据下面的文字资料回答 66～70 题In low-speed network，it is usually adequate to wait for congestion to occur andthen react to it by telling the source of packets to slow down．In high-speednetworks，this approach oftenworks poorly，because in the（ 1 ）between sending