Alligatorsstillexistinsomeofthedank潮湿swampsandbayous小海湾ofAlabama'scoastalregions.
A、weirdly古怪的fascinatingShegotajobasanassistantstagemanagerattheCambridgeArtsFestivalTheatre,thinkingthatitmight________toacareerasaplaywright(剧作家).
下列对关于个体手工业改造错误的是___________。
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
设A为3阶矩阵,为A的属于特征值1的线性无关的特征向量,为A的属于-1的特征向量,则的可逆矩阵P为()
设函数f(x)=ln(3x),则'f(2)=()