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ǰλãҳ > 2019年中考数学总复? 基础过关真题练习全集 - 百度文库

2019年中考数学总复? 基础过关真题练习全集 - 百度文库

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  • 2025/7/6 3:08:51

ʱ3 ʽʽֽ

1.D 2.D 3.C 4.A 5.B 6.C 7.8ab 8m(m1) 9.(x3) 10.5 11⣺ԭʽx4xxx4. x2ʱԭʽ246.

12⣺ԭʽm2m1mn2mm12mn. mn10ʱԭʽ2108. չ 1.B 2.A

3a5ab10ab10ab5abb

5

4

32

23

4

5

2

2

2

22

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ʱ4 ʽ

(ʱ䣺35 ֵ55)

ֱ׼ѡÿ3֣

x1(2018)ʽx4

壬ʵxȡֵΧ( )

Ax0 Bx4 Cx0

Dx4

2(2018½)֪ʽx1

x1

ֵ㣬ôxֵ( ) A1 B0 C1

D1

3зʽʽ( ) A1xx1 B

x1

x21

C2xx21

D42x 4xyֵΪԭ2зʽֲֵ( A

xxy

B2xy2 3

x2Cy

D3x2y2 5ȷ( ) A(3x3)2

9x6

B2mn3(m3n)2m3n3

Ca13a2a2a2a2

Da2411a22aa2a 6㣺4xx24xx2

____________. 7(2018Ƹ)?

?x?x323x??

?x3x2

____________.

8(6)(2018)x2x1???12x5x24???

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9(6)㣺?

2x?11?

. ?2

?xyxy?x2xyy2

?1??1?10(6)Ȼֵ?x2??1?x31.

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x??x?

x29x11(7)Ȼֵ2ڣ3,22ѡһ

x3x2xx2

ģֵ

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1(9)֪ʽͷźܶƵ㣮ȷĻʣǵõ˷ʽĻʣȷ㷨ǵõ˷ʽ㷨СѧѷӱȷĸСķƵأǰѷӵĴСڷĸĴķʽΪʽ֮ΪٷʽκһٷʽԻʽʽĺ͵ʽ磺

5?x1222x32x252x25?12??. x1x1x1x1x1x1x1?x1?(1)зʽУʽǣ________()

x2

x1x12

x1x1

a2x22ba23

2 2 a1x1b3a1

4a34a3(2)ٷʽ ʽʽĺ͵ʽ________________

2a12a1

a23a23

(3)ٷʽ ʽʽĺ͵ʽ__________________.

a1a1

ʱ4 ʽ

1.D 2.C 3.C 4.A 5.D 6.

xx2

7.1

x2x2

8⣺ԭʽx1xx

x1

. x2

2

xyxyxy9⣺ԭʽxyxy2xx22x1xx

10⣺ԭʽxx1xx31ʱԭʽ3113. 11⣺ԭʽ

2

xy. xyxx1.

x1

x2x3

xxxxxx

x2x2

xx23xxx2x2

xxx

x2

x.

x٣3,2x2. x2ʱԭʽ2. չ 1.(1)ۣ(2)2

54(3)a1. 2a1a1

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ʱ3 ʽʽֽ 1.D 2.D 3.C 4.A 5.B 6.C 7.8ab 8m(m1) 9.(x3) 10.5 11⣺ԭʽx4xxx4. x2ʱԭʽ246. 12⣺ԭʽm2m1mn2mm12mn. mn10ʱԭʽ2108. չ 1.B 2.A 3a5ab10ab10ab5abb 543223452222269 ʱ4 ʽ

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