【简答题】Clean On Board B/L: ____________.
【简答题】阅读下面问题: 1 1+ 2 = 1×( 2 -1) ( 2 +1)( 2 -1) = 2 -1 ; 1 3 + 2 = 3 - 2 ( 3 + 2 )( 3 - 2 ) = 3 - 2 ; 1 5 +2 = 5 -2 ( 5 +2)( 5 -2) = 5 -2 . 试求:(1) 1 n+1 + n (n为)的值. (2)利用上面所揭示的规律计算: 1 1+ 2 + 1 2 + 3 + 1 ...
【简答题】阅读下面问题: 1 1+ 2 = 1×( 2 -1) ( 2 +1)( 2 -1) = 2 -1 ; 1 3 + 2 = 3 - 2 ( 3 + 2 )( 3 - 2 ) = 3 - 2 ; 1 5 +2 = 5 -2 ( 5 +2)( 5 -2) = 5 -2 . 试求:(1) 1 n+1 + n =______. (2)利用上面所揭示的规律计算:( 1 1+ 2 + 1 2 + 3 + 1 3...
【简答题】解方程: (1) 5x+2 x 2 +x = 3 x+1 (2) 2x 2x-5 - 2 2x+5 =1 .
【单选题】计算 (x-1)(x+2) (x+1)(x+2) ?5(x+1) 2 等于( )
【简答题】术语翻译:Clean On Board B/L()
【简答题】CLEAN ON BOARD B/L通常应具备哪些条件?
【简答题】翻译Full set of clean on board B/L made out to order and bank endorsed。