【单选题】已知数列 1 2 , 2 3 , 3 4 , 4 5 ,…, n n+1 ,… ,则0.96是该数列的第( )
【简答题】Married in a Kimono, Happy in Switzerland We interviewed Mayumi, a 36-year-old Japanese woman who has lived in the Swiss town of Bevaix for two years with her husband-an Englishman whom she met on the...
【单选题】She met two _____ in the street yesterday afternoon.
【单选题】She met two _____ in the street yesterday afternoon. A.Australian B.American C.Japanese D.German
【单选题】已知数列{ a n }是等差数列,且 a 3 + a 11 =50,又 a 4 =13,则 a 2 = [ ]
【简答题】已知数列{a n }满足a 1 =5,a n a n+1 =2 n ,则 a 7 a 3 =( ) A.2 B.4 C.5 D. 5 2