【单选题】What’s the theme(主题)of E.T?
【单选题】What’s the theme(主题)of E.T?
【简答题】—What’s the t_________ with you,jane?----I can’t sleep well at night.
【简答题】设m,n是,证明:(2 m -1,2 n -1)=2 (m,n) =1.
【单选题】我国《铁路法》规定,由于( )造成人身伤亡和自身行李损失的,铁路运输企业不承担赔偿责任。
【简答题】已知数列{ }满足a 1 =0,a 2 =2,且对任意m、n∈N*都有a 2m﹣1 +a 2n﹣1 =2a m+n﹣1 +2(m﹣n) 2 (1)求a 3 ,a 5 ; (2)设b n =a 2n+1 ﹣a 2n﹣1 (n∈N*),证明:{b n }是等差数列; (3)设c n =( +1 ﹣ )q n﹣1 (q≠0,n∈N*),求数列{c n }的前n项和S n .
【判断题】由于不可抗力或者旅客自身情况,造成人身伤亡和自带行李损失的,铁路运输企业不承担赔偿责任。
【单选题】What’s the trends showed inP4?
A.
Young people are changing in agenda.
B.
Young people cannot live without their parents.
C.
Young people needs friends.
D.
Young people are likely t shift to a new career.