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【单选题】
以下哪个命令用于复制ssh公钥到远程计算机()A.
ssh-keygen
B.
ssh-copy-id
C.
ssh-keyscan
D.
ssh-copy-key
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复制链接
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举一反三
【简答题】I love secondhand books far more than new ones! I especially like books that someone else has gone through first. It’s a kind of connection — and an experience of wondering exactly who has been there ...
【单选题】已知函数x（t）的傅里叶变换为X（f），则函数y（t）=2x（3t）的傅里叶变换为（）
A.
2X（f/3）
B.
2/3X（f/3）
C.
2/3X（f）
D.
2X（f）
【单选题】—Did you meet our English teacher in the library? — _______. I met her in the office. [ ]
A.
Yes, I did
B.
No, I didn't
C.
Yes, I didn't
D.
No, I did
【单选题】--How did ____ feel to run 3000 meters at the sports meet? --Terrible! Especially when I saw I was left so far _____ by the others.
A.
that; alone
B.
it; alone
C.
that; behind
D.
it; behind
【单选题】---Did Tom win the 200-meter race at our sports meet? ---Of course not. I’m a poor runner and he did _______ than I.
A.
as well as
B.
no better
C.
no worse
D.
not better
【单选题】—Nice to meet you. I'm Sam. May I know your name? —Of course. ________ name is Jenny. Nice to meet you. [ ]
A.
My
B.
Your
C.
Her
D.
His
【单选题】— ________ the way, did you meet Danny ______ your way home yesterday afternoon? — Yes, I did. [ ]
A.
On; by
B.
By; on
C.
On; in
D.
By; in
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