设函数f(x)=x+1/x，则f(x-1)=
A、x/x+1B
暂无解析
Since1971theCanadiangovernmenthasadoptedapolicyof________,recognizingthatculturalpluralismwithinabilingualframeworkistheessenceoftheCanadianidentity.
DuringtheSecondWorldWar,Roosevelt,StalinandChurchillmetat________.
Thefarmingmethodshavebeen________improvedwiththeinventionofthenewmachine.
Neverbefore_______sorapidlydevelopingasitistoday．
Howmanypartsdoesascienceandtechnologypaperconsistof?Whatarethey?
