【单选题】We are sending a 30 Mbit MP3 file from a source host to a destination host. Suppose there is only one link between source and destination and the link has a transmission rate of 10 Mbps. Assume that t...
【简答题】Suppose there is a file test.txt in the present directory. Its content isLifeisshort,youneedPython.isbetterthancomplex.Run the following code.fp=open('test.txt','rb+',0)fp.readline()fp.seek(10,1...