找回密码
 立即注册
查看: 85|回复: 0

??????

[复制链接]

0

主题

0

回帖

56

积分

管理员

积分
56
发表于 2019-9-13 23:46:11 | 显示全部楼层 |阅读模式
???2014??????????

2014---2015?????????????????

???????

????????????????????????????6????120??????90??

?????????

30??

???????10??????3????30????????????????????????????

A.???????????? B.????? C.??????? D.???????

2

12???????????

x

?x2?2x?(x?1)(x?1)??2x?y?1?0?????????????? ? A?1 B?2C?3D?4

??3(x?9)?(x?1)?1??x?3?

2

3????????????? ?

A.12 B.6C.9 D.16 4????????? ?? ??????????????????

???????????????????????????????????????????

????????????????????????????????

???????????????????????????????????????? ?.??

?.??

?.??

?.??

225????x????????a?1?x?x?a?1?0?????0??a???? ?

1

A? 1 B? -1 C ? 1?-1 D?

2

6???????ABC???DE?BCAD1

DE?4 cm??BC??? ( ) ??

BD2

A?8 cmB?12 cmC?11 cm D?10 cm 7???x2?5xy?6y2?0??y:x?? ? ?

111

A??B?2?3C??1D?6?1

326

8???????????

????xax2?bx?c?0(a?0)A.x?3.24 B.3.24?x?3.25 C.3.25?x?3.26 D.3.25?x?3.28

9.????????ABCD?????????????????? ? A.?AB=BC?????? B.?AC?BD?????? C.??ABC=90?????? D.?AC=BD???????

10?????ABC??DE//BC?BE?CD???O?AO?DE?BC??N?M???????????? ?

DNADADDEDODEAEAOA.B.C.D. ????

BMABABBCOCBCEC

OM

A

BM C

??10?????18???

??????????90??

??????????3????24??????????????

11???a?b?c?d????????????a=3cm?b=?x-1?

cm?c=5cm?d=?x+1?

cm,?x= ? 12???x???(m?)x

m2?1

?x?3?0?????????m??

.

13???????????????1200?????????2??????????_________.

y?zx?zx?y

???k,?k??? ? 14????xyzx?y4x

?,?= ? 15????2x3y

16???????????????????????????_________?

17????2010????????2000??????2012??????????2880????????????????????????????? ? 18???????ABCD????8?M?DC???DM=2?N?AC??????DM+DN????????????66?? 19?????(16?)

2

?3?x?2??x?x?2??2x?22x?5?0

2

?(3x?2)2?3(3x?2)?2?0 ?(x?1)

20??8????????????????????????????????????25??????150??????25?????1????????2???????????100??????????????4800??????????????????

2

?121?0

21??8???????ABC???B=90?AB=6cm?BC=8cm???P??A?AB??B??1cm/s???????Q?B??BC???C??2cm/s?????????????

?1???????PBQ????8cm2??2????????PQ???42 cm?

22??8????????ABCD??E??CB????????EB=AB?DE?AB??

??F?AD=3?CD=2??AE?DF???

23??8?????????1?2?3 ?????????????????. ?1?????????????????

?2???????????????????????????????????????????????32??????

24??8????x???????x2

-3x-k=0?????????? ??k?????

??????k?????????????

????????????????

2012?2013??????????????????

???????

??????120????????100??

????_______??_______??________??________??______

??????????????????????????????????24?????2??

1.??????????????????????????

2.?????????????????????????

3.????????????

A?????????????????????B?????????????????????C???????????????????

D????????????????????????

4.??????????????????????????????R1?R2????????R1?

R2????????????????

5.???????????????????A?????????????B???????????????C??????????????????D??????????????????

6.???????????????????????Sl???S2?????????????????????Sl?S2

???????????????????????????????????????

7.????????????????????A?????????????????B????????????????C???????????????????D???????????????

8.????????????????L1?L2??????????????????????????A?L1??B?L2??C??????

D??????

9.??????????????????????????????????????????????????????????????????

10.?????????????????????????????????????????????????????? A????L1?L2???? B????L1?L2???? C????R1?R2???? D????R1?R2????

11.????????????????R1????????S???????????

A??????????????????????B??????????????????????C??????????????????????D??????????????????????

12.??????????????R=40???????R0??????40???????????20V?????S?????????P?a???b?????????????????????A?0?10V B?2.5V?20V C?5V?10V D?10V?20V

???????????????????????????????????????12?????3????????????3?????????2????????

??

13.???????????????????????????P?B????????????????????????????????

A?A?D B?A?CC?B?D D?B?C

14.???????????????????????????????

15.???????????????????????????

A???????????????B???????????????????

C????????????????????????????D?????????????????????????????16.???????????????S???????A1????0.4A?A2????0.3A?A3????0.6A?????????A????????????B??????????2:1:3 C??????????1:1:1D??????????3:1:2

????????64???????????2???14??

17.???????????_________??????????

18.???????____________????????????

19.????????????????????1.410J/kg?????3kg????????____J?

20.?1min??15C?????????????????????_______A?

21.R1?R2???????R???R:R2?3:7????R1?R2??????______?

22.??A?B????????????????????????A?B???????????A????0.2A??A?B???????_______V?

8

23.?????MN??????R1??????????? R2??????20??????????P??a????????? 0.25A????P?? ab ?????????? 0.40A?? R1?_______??

????????(?38?)

24.????????????_______A?

????????????????(???)

2012?2013????????????

? ? ? ?

1. ??x=2???????x2-mx+2=0??????m???? ?

A?-3B? 3

C? 0D? 6

2.??????????????????A???B??????????

????? ?

A?????

B?????

C???????

D???????

3. ?????ABC???ABC??ACB???????E???E?MN?BC?AB?M??AC?N??BM+CN=9????MN???? ?

A?6B?7C?8 D?9

4.????x?y?????x?

y

????????????????? ?

A?20?16B? 20 C? 16D????????

5.???????x???????x2?2x?3=0??????????? ?

A??x?1?2=4B??x+1?2=4

C??x?1?2=16 D??x+1?2=16

6.?????????????(?1?y1)?

A? ?? B???? C???D? ????

??y1?y2???( )

7.?????ABC??AD?BC??D??AD=BC???ABC??????? ?

A? 45

B? 75 C? 60 D? 45?75

8.??????ABCD???A=60?E?F???AB?AD????DE?BF

????G???BD?CG?????????BGD=120 ??BG+DG=CG??

?BDF??CGB

??S?ABDAB2?????????? ? A?1?B?2? C?3? D?4?

?????????3???21??

9.??x2-9=0????

10.???????x2?2x?m?0??????m?????

? ?

11. ?????ABCD???A+?C=100???B= ??

12.?????ABC??AB=AD=DC??BAD=20???C= ?

13.??????ABOC????2??????y?k?????A??k??x

? .

14.???????ABCD????AC?BD?????6cm?8cm?AE?BC?

?E??AE??? ?

15.?????12cm????ABCD?????????EFGH???E?F?G?

??AB?BC?FD???BF=3cm???????????.

???????75??

16. (8?)????

(1) 2?x-3?=3x?x-3? (2)x?2x?2x?1

2

17. (9?)?????ABC??AB=AC??ABC=72?

?1?????????ABC????BD?AC??D????????????????

?2???1?????ABC????BD????BDC????

18. (9?)?????AC?BC?BD?AD?AC ?BD ??O?AC=BD? ????1?BC=AD?

?2??OAB???????

D C O A B

19.(9?) ?????????????AB???????BC???????DE???????EF??M????????????MN?

?1???????????P????

?2??????????????(???MG??)?

?3??????????????D???????????????

20. (9?) ??????ABCD?????BD??????MN?AD????M??BC????N???BM?DN?

?1???????BMDN????

?2??AB=4?AD=8??MD???

21. (10?)??????????????????40??????60???????????100???????????????????2?????????????20??????????????????????2240??????

?1?????????????

?2???????????????????????????????????????????

22.(10?)????????45?????MNK??ACB???????????MNK?????M???ABC???AB??????AC=BC=a?

?1???1?????????????ACM?????????? ,??? .

?2???1???MNK???M?????45????2??????????? ,??? .

?3?????MNK?M???????1??2??????3??????????????????????????


???????????????
?????http://www.850500.com/news/61225.html
?????,??!
您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

Archiver|手机版|小黑屋|Discuz! X

GMT+8, 2026-3-10 15:31 , Processed in 0.346588 second(s), 18 queries .

Powered by Discuz! X3.5

© 2001-2025 Discuz! Team.

快速回复 返回顶部 返回列表