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【多选题】
矩阵 的秩 则下列结论正确的是( ).A.
时， 为 矩阵，则
B.
时， 为 矩阵，则
C.
线性方程组 的任何一个基础解系中都含有 个线性无关的解向量;
D.
为一 维向量， 则 可由 的列向量组线性表示.
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举一反三
【多选题】Robert Burns wrote poems as follows:
A.
A Red, Red Rose
B.
Auld Lang Syne
C.
Poems Chiefly in the Scottish Dialect
D.
Sonnet 18
【单选题】Which of the following is Not true about Robert Burns?
A.
Robert Burns is a scottish poet.
B.
Robert Burns is considered as the national poet of scotland.
C.
Robert Burns only wrote in Scots language (苏格兰语).
D.
Robert Burns is regarded as a pioneer of the English Romanticism.
【单选题】Robert Burns wrote ____.
A.
in Cockney
B.
in Scottish dialect
C.
in Irish dialect
D.
in Welsh dialect
【多选题】Robert Burns wrote poems as follows:
A.
A Red, Red Rose
B.
Auld Lang Syne
C.
Poems Chiefly in the Scottish dialect
D.
Sonnet 18
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