x=y^2
Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.
Takeit______.Itisnothingbutajoke.
Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.
设向量组线性无关，则下列向量组线性相关的是（）
设奇函数f(x)在上具有连续导数，则()
