n维向量组<img src="http://www.weimei168.com/uploads/202208/161266914012561.png" width="20" height="29" />，<img src="http://www.weimei168.com/uploads/202208/161266914543171.png" width="24" height="29" />，…，<img src="http://www.weimei168.com/uploads/202208/16126691514171.png" width="22" height="30" />(s≥2)线性相关充要条件（）