Applicantsshouldnotethatallpositionsare——toAustraliancitizenshiprequirements．
Iknowitisn’timportantbutIcan’thelp________aboutit.
设随机变量(X,Y)服从二维正态分布N(0,0;1,4;-1/2),随机变量中服从标准正态分布且与X独立的是()
Theteamplayedhardbecausethechampionshipofthestatewas______.
求函数f(x)=x^3-3x^-9x+2的单调区间和极值.
