24-空-名以* -a-+-*a*a -仍+，)匹+% (m1+n2)2 =-10S+(2-10S h+n2-1 +g-n到 n1+n2 (41-0S+(2-1)S经+n(区1-X)子 n1+n2-1 （m,+h,-D(h,+n, . ( ( ) ( ) ( ) ] ( ) [ ( ) ( ) ] ( ) ( ) ( ) [( ) ( ) ( ) [ ( ) ] （ 1 2 ） 1 2 ） 2 1 2 1 2 1 2 2 2 2 2 1 1 1 2 2 2 2 2 2 2 1 1 2 2 2 1 1 1 2 1 2 2 2 2 2 1 1 2 1 2 2 2 2 2 2 1 1 1 2 2 2 2 2 1 1 2 2 2 2 1 1 1 2 2 1 2 1 2 2 1 2 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 n n n n n n X X n n n S n S n n n X n X n X n X n n n n n S n S n n n X n X n n n S n S n X n X n n X X n n X n n S n i i n i i + − + − + + − − + − = + + + − + − + + − − + − = + + − + − + − + + + − = + − + + − =   = =