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【多选题】
用man命令查看read命令的帮助文档时,可以使用如下哪个命令?(多选)A.
man read
B.
man 1 read
C.
man 2 read
D.
man 4 read
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反馈参考答案：
举一反三
【单选题】Don’t lose heart. It won’t be long ___________ you catch up with others.
A.
since
B.
until
C.
as
D.
before
【单选题】If we don’t hurry up, we won’t be ______ to catch the train.
A.
in time
B.
in no time
C.
at times
D.
at a time
【单选题】If you don't study hard, you won't ______ other students. [ ]
A.
come up with
B.
catch up with
C.
agree with
D.
play with
【单选题】______ quickly, _______ you won’t be able to catch the train.
A.
To get up; or
B.
Getting up; and
C.
Get up; or
D.
If getting up; but
【单选题】She ________ to catch the early train，but she didn’t get up in time.
A.
intended
B.
was intended
C.
had intended
D.
was intending
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