fair
quite
well
quiet
Which one of these statements about connecting to the Internet is true?(68).A．The Internet can only be used to link computers with same operating systemB．The Internet can be used to connect computers with different ISPC．You must have a telephone line to connect to the InternetD．You must have a modem to connect to the Internet
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●(72) is a device that allows a computer to transmit information over a telephone line.(72) A．DiskB．ModemC．PrinterD．Display
In line with the passage, if you don't like to write a letter, it's simply because ______.A. you are lazy enoughB. you are busy enoughC. you haven't found the advantages of lettersD. you can't afford too many letters
I arrived at the airport so late that I __________missed the plane. A．only B．quite C．narrowly D．seldom
Miss Gao is in the classroom at the moment.A:at once B:right now C:now D:all the time
There was a simultaneous trial taking place in the next building.A: fair B: full C: coexisting D: public
In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （ ） chance of collision because two or more stations may find the line （请作答此空） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （ ） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （ ） amount of time and then senses the line again.The nonpersistent approach （ ） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.A.idle B.busy C.useful D.unusable
