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【单选题】
Would you give ______ to me, please?A.
them
B.
they
C.
their
D.
they're
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举一反三
【单选题】Consider a linear system whose augmented matrix is of the form which of the following statements hold such that the system will have infinitely many solutions?
A.
a=0,b=0
B.
a=0,b≠0
C.
a≠0,b=0
D.
a≠0,b≠0
【单选题】Consider a linear system whose augmented matrix is of the form which of the following statements hold such that the system must be inconsistent?
A.
a=0,b=0
B.
a=0,b≠0
C.
a≠0,b=0
D.
a≠0,b≠0
【多选题】Consider a linear system whose augmented matrix is of the form ,which of the following statements hold such that the system must have the unique solution?
A.
a=5, b≠4
B.
a=5, b=4
C.
a≠5, b≠4
D.
a≠5, b=4
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