The meeting in Japan is aimed at______.
A. calling for more nations to contribute money
B. collecting more money
C. making a plan for East Timor s reconstruction
D. sharing the required money among donor countries
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By 1929, Mickey Mouse was as popular ______children as Coca-Col
A. forB. itC. oneD. among
Which of the following is true about Jim
A. He covered up George' s guilt.
B. He persuaded the jury to set George free.
C. He told the jury that George was indeed guilty.
D. He recommended severe punishment to give George a lesson.
The problem of ______to select as his successor was quickly disposed of.
A. what
B. whom
C. which
D. how
设矩阵B的列向量线性无关，且BA=C，则( )
A. 若矩阵C的列向量线性无关，则矩阵A的列向量线性相关
B. 若矩阵C的列向量线性无关，则矩阵A的行向量线性相关
C. 若矩阵A的列向量线性无关，则矩阵C的列向量线性相关
D. 若矩阵C的列向量线性无关，则矩阵A的列向量线性无关
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