选择题:He failed to carry out some of the provisions of the contract,and now he has to

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题目内容:

He failed to carry out some of the provisions of the contract,and now he has to answer( )the consequences.

for

答案解析:

A good citizen is expected to conform( )the law of his country.to

A good citizen is expected to conform( )the law of his country.to

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设A为3阶矩阵,α1,α2,α3为线性无关的向量组。若Aα1=α1+α2,Aα2=α2+α3,Aα3=α1+α3,则|A|=

设A为3阶矩阵,α1,α2,α3为线性无关的向量组。若Aα1=α1+α2,Aα2=α2+α3,Aα3=α1+α3,则|A|=

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设有位于曲线下方,x轴上方的无界区域G,则G绕x轴旋转一周所形成空间区域的体积为

设有位于曲线下方,x轴上方的无界区域G,则G绕x轴旋转一周所形成空间区域的体积为

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试求一个正交的相似变换矩阵, 化为对角阵

试求一个正交的相似变换矩阵, 化为对角阵

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