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ǰλãҳ > 湖北省黄石市2019-2020学年九年级下学期5月份返校摸底考试数学试卷(无答? - 百度文库

湖北省黄石市2019-2020学年九年级下学期5月份返校摸底考试数学试卷(无答? - 百度文库

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ʡʯ2019-2020ѧȣ£5·ݾ꼶У׿

ѧԾ

һѡ(ÿС3֣30)

1ͼУԳͼΣĶԳͼε( )

A1 B2 C3 D4 2.

2?18Ľ( )

A 16 B ?16 C ?22 D 22 3. иʽ ٣?3

2

1

?2

=9 (?5)0=1 ۣa+b=a2+b2

2

?3ab3=9a2b6 3??2?4??=??? мȷǣ A٢ڢ B٢ڢ Cۢܢ Dڢܢ

4.һ͸ĿڴУװһЩɫȫͬĺ׺ɫС򣬼֪к523ҴӴһĸ10кĸΪ( )

A.27 B.23 C.22 D.18.

5. ijؿijȾָ:41454144404241ݵλֱ( ) A.42,41 B.41,42 C.41,41 D.42,45

6. ͼABCDУAB=5ԽACBDཻڵOACBD=3:4

1

AECDڵEAEijǣ A.4 B.5 C.5 D. 5 24

12

7. ͼɼͬСɵļͼ͸ͼСĸ( )

A.56 B.67 C.78 D.89

8.ϵĺԼΪ361000000ƽǧף361000000ÿѧʾΪ( )

A.36.1107 B.0.361109 C.3.61108 D.3.61107

9. xķ(???5)??2?4???1=0 ʵa㣨 A.??1 B.??>1??5 C.??1??5 D.??5 10. ??=????2+????+??(a0)ԳΪֱ ??=?1ͼͼʾ??>??>??4???2??+??<0 ??2?4????<0 3??+2??>0 ??(????+??)+??>?? ??ʵȷĸǣ A.3 B.2 C.1 D.0 ?1 1 ??

??

(ÿС3֣18)

11.ںy?1?(x?3)0ԱxȡֵΧ x?312. һ뾶4ԲĽ90ΧһԲ׶IJ棬Բ׶ĸ____________

13. ͼ????=????????=????һʵ____________ʹá??????ա??????һɣ

??

??

??

??

??

y14֪(-1y1)(2.y2).(3.y3)ڷy1y2y3 ĴӴСĹϵ

-k2-1xͼϣֵ

15.ڡABCУC90㣬AC6BC8һǷ,ʹǶԱߵеD۽һֱDZڵEбڵFDEijΪ

16. ͼƽֱϵС??1??2??3,??3??4??5,??5??6??7бϣбֱ߳Ϊ246ĵֱΣ??1??2??3ĶֱΪ(2,0) (1,-1) (0,0)ͼʾɣ??2019Ϊ____________

⣨72) 17. 1(6)

18?(??????60)?12?1?4??????30+(2?2)0

(2)ʽֽ(4)

(?????)(3??+??)2?(??+3??)2(?????)

18.(5)̣ⷽx2?8x?11?0 19.8֣

ͼڡABOУOA=OBCDZABе㣬OΪԲģOCΪ뾶ԲAOOڵEֱOBOڵFDEFCFCFOAڵG

1ֱ֤ABǡO 2AB=4BDSinAֵ

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ʡʯ2019-2020ѧȣ£5·ݾ꼶У׿ ѧԾ һѡ(ÿС3֣30) 1ͼУԳͼΣĶԳͼε( ) A1 B2 C3 D4 2.2?18Ľ( ) A 16 B ?16 C ?22 D 22 3. иʽ ٣?321?2=9 (?5)0=1 ۣa+b=a2+b2 2?3ab3=9a2b6 3??2?4??=??? мȷǣ A٢

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