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【简答题】
如图,四边形ABCD、DEFG都是正方形,连接AE、CG,AE与CG相交于点M,CG与AD相交于点N.试判断AE与CG之间的关系?并说明理由.
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举一反三
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A.
for
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on
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to
D.
with
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A.
1≤a≤9
B.
6<a<9
C.
a≤9
D.
6≤a≤9
【多选题】为vim中的文本设定行号,下面哪个做法是正确的?
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:set number
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【简答题】Millions of girls grow up with the hope of becoming a famous singer. Some even win local talent competitions as children, but only a few such early successes and dreams turn into reality. Jessica Andr...
【单选题】已知条件p:x 2 -3x-4≤0;条件q:x 2 -6x+9-m 2 ≤0,若p是q的充分不必要条件,则m的取值范围是(  )
A.
[-1,1]
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[-4,4]
C.
(-∞,-1]∪[1,+∞)
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【单选题】方程x 2 +6xy+9y 2 +3x+9y-4=0表示的图形是(  )
A.
2条重合的直线
B.
2条互相平行的直线
C.
2条相交的直线
D.
2条互相垂直的直线
【简答题】Alexey Vikhlinin tried to study how clusters of galaxies grow by using ______.
【多选题】为vim中的文本设定行号,下面哪个做法是正确的?
A.
:set nu
B.
:set number
C.
:set no nu
D.
:set nonu
【多选题】为vim中的文本设定行号,下面哪个做法是正确的?
A.
:set nu
B.
:set nonu
C.
:set no nu
D.
:set number
【单选题】Color and sex are not relevant ________ whether a person is suitable for the job.
A.
on
B.
for
C.
to
D.
with
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