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【简答题】
设向量α 1 =(1，2，-1)，α 2 =(2，-3，1)，判断向量组α 1 ，α 2 的线性相关性。
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举一反三
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A.
/; /
B.
your; /
C.
the; a
D.
a; the
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A.
confronting
B.
you confronted
C.
having confronted
D.
confronted
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A.
is proved
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prove
C.
proves
D.
proved
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A.
Whether
B.
Also
C.
However
D.
Much as
【简答题】所谓电路,是由电的器件相互连接而构成的 的通路
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