n阶矩阵A, B, 若矩阵A可逆,则AB与BA有相同的特征值.
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The government has _________ strong opposition to its plans to raise income tax.
A. experienced
B. encountered
C. pleased
D. decorated
The people in this country have _________almost a decade of economic hardship.
A. adopted
B. lifted
C. existed
D. endured
Yesterday morning, shares seemed to _______ Monday’s collapse.
A. recover from
B. hear from
C. invented from
D. keep from
His works________ our knowledge of the disease and how to treat it.
A. reach out to
B. manage to
C. consumed
D. contribute to