Many _______will be opened up in the future for those with a university education ．
D
暂无解析
设数列 {an} 的前 n 项和为 Sn，则 {an} 等差。
(1) S n4=n 2+2n, n=1,2,3
(2) S n4=n 2+ 2n +1,n=1,2,3
Many_______willbeopenedupinthefutureforthosewithauniversityeducation．
About20ofthepassengerswhowereinjuredinaplanecrasharesaidtobein_____condition．
We aim to ensure that all candidates are treated fairly and that they have equal______to employment opportunities ．
Thepoorcountriesareextremely_______tointernationaleconomicfluctuations