船長范圍內首樓甲板(小于1/4L)、尾樓甲板和干舷甲板上透氣管的高度分別為____mm
A、450,450,760A
暫無解析
設,其中為任意常數,則下列向量組線性相關的為()
“Haveyoumovedintothenewflat?”“Notyet.Therooms________(paint).”
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
ComradeLi________beinBeijingbecauseIsawhimintownonlyafewminutesago.
設4階矩陣A=(aij)不可逆,a12的代數余子式A12不等于0,為矩陣A的列向量組