题目内容

- _______ Tai mountain before?- Yes, I have.

A. Have you gone to
B. Have you been to
C. Have you been in

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My brother_______this bike for almost four years.

A. has had
B. has bought
C. bought

It_ ten years since I last _ to New York.

A. has gone; went
B. has been;went
C. Is;had gone

My father_______on business for two weeks. He'll return in 3 days.

A. hasleft
B. has been away
C. has gone

sudo根据文件()判断谁是授权的用户

A. /etc/sudo
B. /etc/sudoers
C. /etc/login.defs
D. /etc/.login