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【单选题】
某公司申请到一个C类IP地址段,但要分配给6个子公司,最大的一个子公司有26太计算机不同的子公司必须在不同的网段,则子网掩码应该设置为()A.
255.255.255.0
B.
255.255.255.128
C.
255.255.255.192
D.
255.255.255.224
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举一反三
【单选题】I will go to the dancing club _____ 4p.m. I am a __________ of the school dancing club.
A.
to; members
B.
in; membership
C.
at; member
D.
on; member
【简答题】在注入或放出溶液后,必须静置 后,使附在内壁上的溶液流下来以后才能读数。如果放出液体较慢(如接近计量点时就是这样),也可静置0.5~1min即可读数。
【单选题】—Lucy, do you want to join the art club or the chess club? — . I like drawing pictures.
A.
Yes, I do
B.
The art club
C.
No, I don’t
D.
The chess club
【单选题】—Selina, are you____________ member of the swimming club? —No, but I joined _________art club last month.
A.
a; a
B.
the; a
C.
the; an
D.
a; the
【单选题】The club I____ and their club will unite to ____ the competition against the team from Wuhan. [ ]
A.
joined, take part
B.
joined in, attend
C.
joined, join in
D.
attended, take part in
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