Theequipment_____outoforder,theexperimenthastobeputoff.
对外贸易统制集中表现在______
Ifyougotoseethefilm“HarryPotterifwe_________aholidaytomorrow.”
以下不属于技术贸易的方式的是()
TheGreatWallinChinaisoneofthefew_____objectsontheearth_____fromthemoon.
设3阶方阵A=(α1,α2,α3),其中αi(i=1,2,3)为A的列向量,若|B|=|(α1+2α2,α2,α3)|=6,则|A|=()