设,其中为任意常数,则下列向量组线性相关的为()
C
Let'sdrink_______Dicks'successinbusiness.
求函数f(x,y)=x^2+y^2在条件2x+3y=1下的极值.
Weregretto________thatitmaynotbepossibletodealwitheveryrequest.
Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.
()