阶子式全为零，即矩阵的最高阶非零子式的阶数为r。则称 r displaystyle r Sensible Vocabulary: relevant words and phrases Classifying and generating order alphabetize anti-hierarchical set up arrangement arranger describe macrocosm miscatalog misclassification misclassify miscode mislabel pigeonhole shake another person down phrasal verb quick-list type sort anything out phrasal verb sprin... https://ocxhc.com