Tosucceedinascientificresearchproject________.
设A为3阶矩阵，为A的属于特征值1的线性无关的特征向量，为A的属于-1的特征向量，则的可逆矩阵P为（）
Asyoulikepopmusic,__________Ilikeliterature.
Hethoroughlyunderstoodthesociety__________.
Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
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