1、0 9(1)2(4 2 6 8 1 7 9 ( )( ) 18(17)3(14) 7 8 8 7 6 ( )(60) (5)213 (1)2096 8 7 (14)(20) 7(11) 6.5(2.5) 1 1 () 90(169) (1)323 8 6 32(30)(6) 2.2(5.9)(4.5)8.1 2 1 1 2 2 8 ()() 1.6()(8.9) 5 2 7 7 5 5 (4b5) y3(65c) 19m8(8b8c) (9mb)5(8b7c) 1 (204y)c 2(5b6mn2) 8 (ab)(st) 4(9ax)3(m8q) 2 3 7b(7b9) b(2b7c)(6c6
2、b) 4(6s1)8s 1(9y1)(7y5) 6(ab3a)(3a3b) 9(abc7a)5(6a7abc) 7(xy5z)(xy8z) 8(pqpr)(2pqpr) 7 x 1 x 0.4x0.22.67.1x 9 4 3 8 1 5x7x 2(x5)2(x1)9 9 9 1 2 (7x9)x5 8x6(18x)8 2 5 y1 y2 9 4.5x3(x7)10 3 5 0.5x0.66.90.9x 4(3x4)2 ()()(1) 14(2)3(3) 7 1 8 ( )( ) 4(30)8(13) 8 6 7 (0.6)(700) (4)333 (1)1140 8 ()0 1(2)3(5
3、4 9 5 1 9 3 ( )( ) 19(11)9(19) 2 8 4 1 1 ( )(70) (4)242 (1)2965 6 5 (8)(7) 6(14) 14(16)()() 151(1310) (2)342 9 6 3019(12)(10) 6.9(3.7)(4)1.9 2 1 1 2 7 6 ()() 3.8()(5.4) 3 2 5 7 5 5 (4x8) z7(93b) 3a2(5y7c) (6ay)3(2x4b) (202z)c 2(8a6xy7) (xy)(mn) 4(8bx)5(n6q) 4 6 2m(2m6) m(3m4d)(6dm) 3(4s3)8s 8(9a5)(5
4、a5) 8(ab5a)(6a6b) 8(abc6a)9(7a8abc) 3(xy8z)(xy6z) 8(pqpr)(9pqpr) 5 x 1 x 0.1x0.33.80.7x 6 8 6 7x7x 8(x3)9(x1)4 9 2 (5x9)x6 4x3(10x)1 6 5 y3 y3 3 1.5x4(x5)50 2 5 0.3x0.31.10.1x 6(3x9)13 ()()(8) 4(4)34 1 8 ( )( ) 5(19)5(12) 5 4 9 (0.3)(10) (5)443 (1)2003 4 0 1(1)2(2 2 9 7 1 1 1 ( )( ) 12(22)1(20) 4 5
5、2 (20) (3)413 (1)1809(5)(18) 12(16) 7(1)() 85(159) (0)422 5 2 2010(1)(20) 5.4(0.6)(1)8 2 1 1 2 4 9 ()() 1.1()(4.3) 9 9 8 5 5 5 (9y6) y2(89b) 4x3(6b9t) (9xb)6(2y3b) 2 (104y)t 5(9a3mn2) 3 (yz)(mn) 5(9by)8(m6q) 8 4 3n(3n1) n(9n7z)(2z6n) 9(3a5)8a 9(8a3)(5a3) 7(ab5a)(5a8b) 20(abc4a)3(3a9abc) 8(xy2z)(xy3z
6、) 4(pqpr)(5pqpr) x 0.4x0.33.63.7x 9 6 9 8x5x 9(x8)6(x9)7 9 3 1 1 (5x2)x9 5x4(10x)2 3 5 y1 y3 5 4x0.5(x9)25 0.7x0.13.11.9x 4(2x5)12 4 1 ()()(1) 2(1)3(2) 1 1 8 ( )( ) 6(22)10(19) 9 2 9 (0.2)(300) (4)233 (1)27690 19(1)2(2 4 7 6 1 4 1 ( ) 9(21)1(14) 8 3 2 (60) (5)242 (1)2503 6 2 (19)(1) 10(4) 12.5(14)()() 173(183) (5)324 9 7 13(30)(13) 9.5(5.1)(4.4)8.1 2 1 1 4 6 7 ()() 1.4()(3.5) 7 4 2 5 5 5 (3y1) z5(92a) 18a4(2y5t) (3ay)2(2y9a) 7 (1010z)t 3(5c7bc6) 6 (yz)(pq) 5(8ax)3(m4p) 3 8 9n(4n6) 6n(5n3z)(7z6n) 5(2a1)6a 9(2a8)(8a10) 9(ab4a)(6a8
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