设
，则数列 sn 有界是数列 an 收敛的（）
B
_______themovieIwouldhavefinishedmypaperlastSunday.
Humanbehaviorismostlyaproductoflearning________thebehaviorofanimalsdependsmainlyoninstinct.
________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
Tostudyaforeignlanguage,__________.
Becareful,_______you'llfalldown.
