单项选择题

An operator is editing a file using vi. Which of the following subcommand sequences will copy the current line plus the next 2 lines to the end of the file?（）

A. yy E 3p
B. 3yy G p
C. 3yy :e 5pp
D. yy :g 3p

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A. F2 key
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C. The settings in the /etc/environment file are system-wide and will override user customized settings in the $HOME/.profile.
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