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【单选题】
Three of the following are characteristics of London, Which of the four is the EXCEPTION?A.
London is a political, economic and cultural centre of the country
B.
London has a larger population than all other cities in England
C.
London is not only the largest city in Britain,but also the largest in the world
D.
London has played a significant role in the economic construction of the country
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【简答题】与下列掩码相对应的网络前缀各有多少位？
【简答题】She was pleased that her work_________ her sister’s Internet is an effective______ of communication. The ______ of the container measures 10,000 cubic meters. Working well as a team is ________ succes...
【单选题】在linux中修改 lisi 用户权限,使其具有可读可写可执行,而用户zh和组zh内所有用户不具有任何权限,所赋数字权限为( )
A.
777
B.
755
C.
007
D.
644
【简答题】与下列掩码相对应的网络前缀各有多少位? (1)192.0.0.0;(2)255.254.0.0
【单选题】在linux中修改 lisi 用户权限,使其具有可读可写可执行,而用户zh和组zh内所有用户不具有任何权限,所赋数字权限为( ) -rw-rw-r-- 1 zh zh 0 Feb 25 17:54 linux
A.
007
B.
755
C.
777
D.
644
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