C.ommunicating via Email is by far the most common Internet activity.You can (71) with anyone in the world who has an Internet address or Email (72) with a system connection to the Internet.All you need is (73) the Internet and an Email program.Two of the most widely used Email programs are Microsoft's (74) and Netscape's Navigator.A typical Email message has three basic (75) : header, message, and signature.(71)
A.connect
B.exchange
C.communicate
D.game(72)
A.account
B.No.
C.user
D.administrator(73)
A.attach with
B.grasp
C.possess
D.access to(74)
A.Yahoo
B.Explorer
C.Foxmail
D.Outlook Express(75)
A.packets
B.elements
C.frames
D.cells
[单选题]In the following essay,each blank has four choices.Choose the most suitable one from the four choices and write down in the answer sheet.Open Shortest Path First(OSPF)is a (66) routing algorithm that (67) work done on the OSI IS-IS intradomain routin
[单选题]In the following essay,each blank has four choices.Choose the best answer and write down on the answer sheet.Spread spectrum simply means that data is sent in (66) pieces over a number of the discrete frequencies available for use at any time in the
[单选题]In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.The key to SNMP(66)is its simplicity. It has a small command set that does a good job of collecting information
[单选题]In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.Spread spectrum simply means that data is sent in(66)pieces over a number of the discrete frequencies available for use at any time in the
[单选题]In the following essay, each blank has four choices. Choose the best answer and write-down on the answer sheet.Microwave communication uses high-frequency(71)waves that travel in straightlines through the air. Because the waves cannot(72)with the cur
[单选题]F.or each blank in the following passage, there are four choices marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet.The first snowboards were made in the 1960s. H
[单选题]Read the following text. Choose the best word(s) for each numbered blank an
[单选题]Read the following text. Choose the best word(s) for each numbered blank an
[单选题]Read the following text. Choose the best word(s) for each numbered blank an
[单选题]Read the following text. Choose the best word(s) for each numbered blank an