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【单选题】
计算机系统应包括硬件和软件两个子系统,硬件和软件又必须依次分别包括______。
A.
机箱和办公软件
B.
中央处理器和系统软件
C.
CPU和应用软件
D.
主板和网络软件
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举一反三
【单选题】点(-1,2,3)在第几卦限( )
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1
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2
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3
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4
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【单选题】在空间直角坐标系里,点(-2,1,-3)在第几卦限
A.
2
B.
4
C.
6
D.
8
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【单选题】—What’s on the plate? —There ______ some jam on it.
A.
are
B.
is
C.
have
D.
has
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【单选题】—What’s on the plate? —There ________ some bread on it.
A.
is
B.
are
C.
has
D.
have
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【单选题】—What’s on the plate? —There _____ some eggs and cakes on it.
A.
is
B.
are
C.
was
D.
were
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【单选题】——What’s on the plate? There _______some rice on it.
A.
is
B.
are
C.
has
D.
have
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【判断题】Online learning will take the place of traditional teaching one day.
A.
正确
B.
错误
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【单选题】点(1,-2,3)在空间直角坐标系的第几卦限?
A.
1
B.
2
C.
3
D.
4
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【简答题】Do you think online learning will take the place of traditional teaching? Why or why not?
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【单选题】—What’s on the plate? some eggs and cakes on it? —There _____some eggs and cakes on it.
A.
is
B.
are
C.
was
D.
were
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