找回密码
 立即注册
查看: 74|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
???????????????????????

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

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

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

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

1?l??????

????

1?A???????????625?B???????????144?

2????????29???74cm???????????????????

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

1?1

????

1?(1)x=l0?(2)x=12?

2????60cm??(???????????????8cm)?

????

12cm? 2

1?2

????

1?8m(???????????10m???????6m??????)?

????

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

????

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

????

12cm?16cm?

??1?3

????

1??????

2????????ABCDEF????ABCDEF??????????

???OBC??OFE??????????????AB F??DFC??

???????????????B EFC???????????????

???ABOF????CDEO??????(BC)=AB+CD????BC=a+b?? 222222

??????????

l?2 ?????????

????

l?(1) (2)??????????????

2??4???????(????????)

????

2?(1)?????????(2)??(3)?

????

4???

1?3 ???????

13km

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

?? 1?5

????

1?5lcm?

????

2???

3??????20cm?

4???1?1?????x???????(x+1)?????????x=12?

???????12??????13??

???

????

1????????28cm?

2?(1)??(2)???(3)???(4)??

3?200km?

4.169cm?

5.200m?

????

6????????????????????????

7???????????????

8???

9?(1)18?(2)??

10???

????

11?(1)24m?(2)???????????????8m?

12??30.6?

????

13?????????????????????????????3m??????

??????3.1 m

??? ??

2?1 ????????

????

1?h??????????????

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

????

1?0.4583? 3.7? ?1/7? 18????????????

??2?2

????

1??559/180?3.97??234?10101010??????0.123 456 789 101 1 12 13???

???

2?(1)X?????(???)?(1)X?3.2?(3)X?3.16

2?2 ???

????

1?6?3/4??17?0.9?10

2??10 cm?

??2?3

????

1?11?3/5?1.4?10

????

2??????????xm?x3120=10.8??x=0.3m 23 -2

????

3?2??3??10???n ??

????

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

??????????????(

????)

??????????3???30??

1? ????????????6?8?x?x??????x ??????????_____? 2???????A?????

3?(?3)2=________??27 =_________? (?5)0??????

4?????5dm??????????????12dm???????????? 5?10?2?????????????? 6????61125

?1?_________

144

A225

?

3

7??a?b??????c?d??????a?b?8???,0,

227,

cd?______?

?125,0.1010010001?,?2

?

,0.3,?

?

2

??

??????? ??

9?????????6??????2??????5??

????????????????????????? ?? 10???????????3???8???????A????? ?B???????????????_____________? ??????????4???24??

11?????????????7?15?20?24?25????? ????????????? ?

7

?10

??

?

25

20

24

25

24

2024

25

20

7

24

25

(D)

15

7(A)

7

(B)

15

2cm12????????????????????1800??????? ?

?A? 80cm ?B? 30cm?C? 90cm?D? 120cm 13?????????? ? ? ?A? ?9??????3?B?9?????3 ?C? 9????????3?D?9???????3 14??????????? ? ? ?1

25

14412162545?A?1? ?B?2? ?C?3? ?D? 4?

?1

5

15(C)

??(?4)

2

??4???2

2

??2

2

??2??

1

?

1

?

1

?

1

?

920

22

15??a?4,b?9??ab?0??a?b??? ? ?

?A??2 ?B??5 ?C? 5 ?D? ?5 16???

13

24

?

????????? ? ?

6

?A?0? ?B?1? ?C?2? ?D? 3?

??????????4???24??

17?

?24

6

18? (2?

3)(2?

3) 19?2

?24

2

20?(?64)?(?81) 21?

23?????????4???8??

27?

3

22?

?

3

?

2

?1?3

?4?????2

?2?

?1?2y2?8 ?2? (2x?1)3??8

24???2004?a?

a?2005?a??a?2004

2

????6??

25??????????????1????????????2?????????????2??????????????????6??

?25??

26??8???????25???????????????????7???1????????????????2???????????4????????????????????

A

A BCC

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

??

1?100? 2?81? 3?3?3?1? 4???? 5?0.1??2? 6??8????125??

?

2

45

? 7?1?

? 9?41? 10?10?

??

11?C? 12?B? 13?D? 14?D? 15?B? 16?B? ??

17?3? 18?1? 19?143? 20?72? 21?1? 22??7 ??

23??1?y??2??2?x??

12

?

24??a?2005?0??a?2005?0??a?2005??2004?a?a?2004 ?a?2004??a?2004

25?

26?8??

2

a?2005?a??a?2005?2004??a?2005?2004

2

??????

?2005

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

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

?????

1??????????????????????( )

A. 1.5, 2, 3;B. 7, 24, 25; C. 6 ,8, 10; D. 9, 12, 15. 2??????????????5???12??????????? ? A?6?? B?8??C?

8060??D???

1313

3??????????10cm?????16 cm,??????? ? ?

2222

A. 48 cm B. 36 cmC. 24 cm D.12 cm

4???????????????????5?????????????? ?30?????????????????

A?10?B?15? C?25? D?30?

5?????????????????7cm???????????1cm?????? ? ?A.18 cm B.20 cmC.24 cm D.25 cm

6???????????16??/???????A???????????????12??/?????????A??????????????2?????????? ?

A?25?? B?30?? C?35?? D?40??

?

7???ABC??AB=12cm? AC=9cm?

?=15cm7??

?????????? ? BC

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

8???????????(a?b)?c?2ab????????? ? ?A???????B?????????C???????D????????

2

2

?????

9???ABC???C?90?? a?5?b?12?? c??

10??????????????.

11???????????3??????????5??????????? ???????????? ?

12????17cm???????15cm??????????

13???5m??13m???????????????????????????????___________m?

5m

11?

13?

?????

14????????????ABC,???????1,????????? (1)??ABC???

(1)???ABC?????? ?????.

15??????13?????AB?????????AC??????B????C????5?????????????1??????????1??

1

16???????????????????????????????????70??/????????????????????????????????????????????30?????2??????????????????50????????????

17???????????????????AC?6cm? BC?8cm??????AC???AD?????? ??AC???AD???????????AB?? ??AE????CD???

C

18????????????????2???6?AB?CD??? ???????AD?BC??????????A??????? ???C???????????????? ?

ED

B

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

?????

1?25?????? ?

A?5 B?-5 C?5 D??2??????????????? ?

5

2?2

2

A??2?(?2)B??2?8C?2?(?2)2 D??

3?????????????( )

?0.333?, 4, 5, ??, 3?, 3.1415, 2.010101?(????1???1?0),76.0123456?(?????????????).

A.3? B.4? C. 5? D. 6? 4???????,?????????? ?A.

1

B. 20 C. 22 D. 3

=4 D?22+32=52 2

5?????????? ?

A.2+= B?2+2=22 C?6? ????????? ?

22

A.?(?6)??6 B.(?3)2?9 C.(?16)??16 D.????

2

??25

7?????????????6cm?3cm???????????( ) A??? B??? C???? D????

8

x????????? ? A?x?1 B?x??1C?x??1 D?x?1

9??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?

?A?3? ?B?4? ?C?5??D?6?

?????

10?36????? ???????? ? 11?8????? ? ?27?

12??7?????3???

2

13?(?4)? ?

(?6)3? ? ()2=.

14???????????:?7, 0.32,

1?1,46, 0, ,,216,?. 322

??????: { ?};

??????: { ?}; ??????: { ?}; ?????:{ ?}. 15??4

10?????????a?__________??

?????

16????????:

?1?.44; ?2??.027; ?3??6; ?4?

924 ; ?5??; 6425

17???:

?1???2; ?2?

?

?3?

?5?(5?7)(5?7)?2(6)(1?2)(1?)

12?3?27?;?4??(1?3)0; 33

(7)(22?3)2.

18?????????????????7 cm??6???????????????6?????????????

???????????

?? ???

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

A?4?8?

B????30 C????25?

D???118???40

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

???????????30??????????????200?????????????????????????????????????????

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

3????????????P??1?l???x?????????

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

10????A(?3?a)??B(3??4)???????????a???( )? A??4 B?4 C?4??4D????? 4????P1(?4,3)?P2(?4??3)??P1?P2( )?

A??????? B???y??? C???x??? D???????? ?????????5???25?? 5????P????????x?????2??y?????3??P????___________ 6????P??3? 2???A??P??y?????A?????______

7??A??B?????x????????A??B? ????? 8????M?a?3?a??????????a?????? ?

9????????????A?B?C??????A??2?5?? B??3??1??C(1??1)?????????D?????ABCD??????????D????____________?

???????11?12???10???13?14???15???50??

11????????????4?6????????????????????????2?3?????????????

12??????6??????ABC???????????????A?B?C????

13??ABC????????????????. (1)???ABC????

?2????ABC??y?????A1B1C1?? ???A1B1C1???????

?3???ABC????6?????????

??A2B2C2?????A2B2C2??????? ?4????A1B1C1??A2B2C2????????

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


?????????????????????(???)????????
?????http://www.850500.com/news/19054.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 13:49 , Processed in 0.469133 second(s), 19 queries .

Powered by Discuz! X3.5

© 2001-2025 Discuz! Team.

快速回复 返回顶部 返回列表