ѧÎÄÍø

ÆßÄ꼶ÊýѧÊî¼Ù×÷Òµ±Ø±¸

ʱ¼ä£º2023-08-21 05:24:04 ÎÄ/ËïС·ÉÀÏʦ ÊýѧѧÎÄÍøwww.xuewenya.com

ÆßÄ꼶ÊýѧÊî¼Ù×÷Òµ

ÿÈÕÇáËÉ×öÒ»×öÊî¼Ù×÷Òµ(1)

Íê³ÉÈÕÆÚ Ô ÈÕ ¼Ò³¤¼ì²é

1.ÏÂÁÐÕûʽ£º¨D x £¬ (a+b)c£¬3xy£¬0£¬ £¬¨D5a +aÖУ¬Êǵ¥ÏîʽµÄÓÐ £¬ÊǶàÏîʽµÄÓÐ .

2.¶àÏîʽ¨D a b¨D7ab¨D6ab +1ÊÇ ´Î Ïîʽ£¬ËüÏîµÄϵÊýÊÇ .

3.ζÈÓÉ10¡æÉÏÉýÁËt¡æºóÊÇ ¡æ.

4.Èçͼ1£¬ÒÑÖªÖ±ÏßAB¡¢DEÏཻÓÚB£¬DE¡¢ACÏཻÓÚC£¬¡Ï4=90¡ã£¬ÄÇô:(1)¡Ï1Óë¡Ï3ÊÇ ½Ç£¬¡Ï1=¡Ï ;(2)¡Ï1+¡Ï2= ¶È£¬¡Ï1Óë¡Ï2ÊÇ ½Ç;(3)¡Ï5= ¶È;(4)¡Ï2Óë¡Ï3ÊÇ ½Ç£¬¡Ï3Óë¡ÏA»¥Îª ½Ç,¡Ï1Óë¡ÏA»¥Îª ½Ç.

ͼ1 ͼ2

5.Èçͼ2£¬Èô¡Ï1=¡Ï2=55¡ã£¬Ôò¡Ï3= £¬Ö±ÏßAB¡¢CDƽÐÐÂð?( ____ )£¬ÀíÓÉÊÇ .

6.ÓÿÆѧ¼ÇÊý·¨±íʾÏÂÁи÷Êý.

(1)ijÖÖÉúÎïϸ°ûµÄÖ±¾¶Ô¼Îª2΢Ã×=________Ã×.

(2)ijÖÖ¶¯Îïϸ°û½üËÆ¿´³ÉÔ²£¬ËüµÄÖ±¾¶Ô¼Îª1.30¡Á10-6Ã×£¬ÔòËüµÄÖܳ¤Ô¼Îª________Ã×(±£ÁôÈýλÓÐЧÊý×Ö)

(3)100ÕÅÃæֵΪ100ÔªµÄаæÈËÃñ±Ò´óÔ¼ºñ0.9ÀåÃ×£¬Ôò1ÕÅÈËÃñ±ÒºñԼΪ________Ã×.

(4)һλ³öÄÉÔ±ÊýÇ®µÄËÙ¶ÈÊÇ2.5¡Á104ÕÅ/ʱ£¬ÔòÕâλ³öÄÉÈËÔ±ÊýÒ»ÕÅÈËÃñ±ÒÓÃ________Сʱ.

(5)ÒÑÖª¹âµÄËÙ¶ÈΪ300000000Ã×/Ã룬ÔòÌ«Ñô¹âÕÕÉä1Ã×ËùÓõÄʱ¼äԼΪ________Ãë(±£Áô3λÓÐЧÊý×Ö).

(6)ijÊÐÓÐ50000ÃûѧÉú£¬Èç¹ûËùÓеÄѧÉú¶¼ÔÚѧУÓÃÎç²Í£¬Ã¿´Î¶¼Ê¹ÓÃÒ»´ÎÐÔ¿ê×Ó£¬ÒÑ֪ÿ´ÎÏûºÄľ²Ä0.05Á¢·½Ã×£¬ÔòÿλѧÉúÒ»´ÎÏûºÄľ²Ä________Á¢·½Ã×.

7.Õý·½ÐεÄÃæ»ýÊÇ2a2+2a+ (a>- )µÄÒ»°ë£¬Ôò¸ÃÕý·½Ðεı߳¤Îª________.

ÿÈÕÇáËÉ×öÒ»×öÊî¼Ù×÷Òµ(2)

Íê³ÉÈÕÆÚ Ô ÈÕ ¼Ò³¤¼ì²é

1.Èô(m-1)xyn+1ÊǹØÓÚx¡¢yµÄϵÊýΪ-2µÄÈý´Îµ¥Ïîʽ£¬Ôòm=________,n=________.

2.Çëд³öÒ»¸ö¹ØÓÚxµÄ¶þ´ÎÈýÏîʽ,ʹ¶þ´ÎÏîµÄϵÊýΪ1£¬Ò»´ÎÏîµÄϵÊýΪ-3£¬³£ÊýÏîÊÇ2£¬ÔòÕâ¸ö¶þ´ÎÈýÏîʽÊÇ________.

3.ÈçͼÊÇij´óÇÅÏÂÒ»º­¶´£¬ÆäÉϲ¿ÊÇÒ»¸ö°ëÔ²£¬ÏÂÃæÊÇÒ»¸ö³¤·½ÐΣ¬²Â²âËüµÄÃæ»ýÊÇ________.

4.ÓÃËÄÉáÎåÈë·¨£¬°´À¨ºÅÖеÄÒªÇ󣬶ÔÏÂÁи÷ÊýÈ¡½üËÆÖµ.

¢Ù0.85417(¾«È·µ½Ç§·Öλ)=_______________;

¢Ú47.6(¾«È·µ½¸öλ)=_____________________;

¢Û2.4976(¾«È·µ½0.01)=__________________;

¢Ü0.03467(±£Áô3λÓÐЧÊý×Ö)=________________;

¢Ý75326(±£Áô1λÓÐЧÊý×Ö)=__________________;

¢Þ73524(±£Áô2λÓÐЧÊý×Ö)=________________.

3.»Ø´ð

¢Ù0.03086¾«È·µ½________λÓÐ________¸öÓÐЧÊý×Ö.

¢Ú2.4Íò¾«È·µ½________룬ÓÐ________¸öÓÐЧÊý×Ö.

5.СÃ÷Éí¸ß1.7Ã×£¬Èç¹û±£Áô3¸öÓÐЧÊý×ÖӦдΪ________Ã×.

6.³õÒ»Ä꼶¹²ÓÐ112ÃûͬѧÏë×âÓÃ45×ùµÄ¿Í³µÍâ³öÂÃÓΣ¬ÒòΪ112¡Â45=2.488¡­£¬ËùÒÔÓ¦×âÓÃ________Á¾¿Í³µ.

7.СÁÁ³ÆµÃÌåÖØΪ46ǧ¿Ë£¬Õâ¸öÊýÊÇ________.¶«·çÆû³µ³§2000ÄêÉú²úÆû³µ14500Õâ¸öÊýÊÇ________.

8¡¢Èçͼ£¬°´Í¼Ìî¿Õ£º

(1)ÓÉ¡Ï1=¡ÏE£¬¿ÉÒԵõ½________¡Î______£¬ÀíÓÉÊÇ£º

__________________________.

(2)ÓÉ¡Ï3=_______£¬¿ÉÒԵõ½AB¡ÎCD£¬ÀíÓÉÊÇ£º

______________________________.

ÆßÄ꼶ÊýѧϲáÊî¼Ù×÷ÒµÊÔ¾í

Ò»¡¢Ñ¡ÔñÌ⣺(±¾´óÌâ¹²10СÌâ.ÿСÌâ3·Ö£¬¹²30·Ö.ÔÚÿСÌâ¸ø³öµÄËĸöÑ¡ÏîÖУ¬Ö»ÓÐÒ»¸öÊÇ·ûºÏÌâÄ¿ÒªÇóµÄ£¬Ç뽫´ð°¸Ö±½ÓÌîÔÚÌâºóµÄÀ¨ºÅÖÐ)¡£

1¡¢¼×ÐÍH1N1Á÷¸Ð²¡¶¾µÄÖ±¾¶´óԼΪ0.000 000 081Ã×£¬ÔòÕâ¸öÊýÓÿÆѧ¼ÇÊý·¨±íʾΪ ( )

A¡¢8.1¡Á10-9m B¡¢81¡Á10-9m C¡¢8.1¡Á10-8m D¡¢ 0.81¡Á10-7m

2¡¢ÏÂÁеÈʽÓÉ×ó±ßϸÈô±ßµÄ±äÐÎÖУ¬ÊôÓÚÒòʽ·Ö½âµÄÊÇ( )

A.x2+5x-1=x(x+5)-1 B.x2-4+3x=(x+2)(x-2)+3x

C.x2-9=(x+3)(x-3) D.(x+2)(x-2)=x2-4

3¡¢Ä³Æû³µÕ¾ÎªÁËÁ˽âijÔÂÿÌìÉÏÎç³Ë³µÈËÊý£¬³é²éÁËÆäÖÐ10ÌìµÄÿÌìÉÏÎçµÄ³Ë³µÈËÊý£¬

Ëù³é²éµÄÕâ10ÌìÿÌìÉÏÎç³Ë³µÈËÊýÊÇÕâ¸öÎÊÌâµÄ( )

A.Ò»¸ö×ÜÌå B.Ò»¸ö¸öÌå C.Ñù±¾ÈÝÁ¿ D.Ò»¸öÑù±¾

4¡¢°ÑÒ»ÕÅ¿í¶ÈÏàµÈµÄÖ½Ìõ°´ÈçͼËùʾµÄ·½Ê½ÕÛµþ£¬Ôò¡Ï1µÄ¶ÈÊýµÈÓÚ( )

A.65¡ã B.55¡ã C.45¡ã D.50¡ã

5¡¢Èçͼ£¬DÔÚABÉÏ£¬EÔÚACÉÏ£¬ÇÒ¡ÏB=¡ÏC£¬ÄÇô²¹³äÏÂÁÐÒ»¸öÌõ¼þºó£¬ÈÔÎÞ·¨ÅÐ

¶¨¡÷ABE¡Õ¡÷ACDµÄÊÇ( )

A.AD=AE B.¡ÏAEB=¡ÏADC C.BE=CD D.AB=AC

6¡¢ÏÂÃæÊÇÒ»ÃûѧÉúËù×öµÄ4µÀÁ·Ï°Ì⣺¢Ù(-3)0=1;¢Úa 3+a 3=a6;¢Û ;

¢Ü(xy 2) 3=x 3y 6£¬Ëû×ö¶ÔµÄ¸öÊýÊÇ( )A.0 B.1 C.2 D.3

7¡¢Çë×Ðϸ¹Û²ìÓÃÖ±³ßºÍÔ²¹æ×÷Ò»¸ö½Ç¡ÏA¡äO¡äB¡äµÈÓÚÒÑÖª½Ç¡ÏAOBµÄʾÒâͼ£¬ÇëÄã¸ù¾ÝËùѧµÄͼÐεÄÈ«µÈÕâÒ»ÕµÄ֪ʶ£¬ËµÃ÷»­³ö¡ÏA¡äO¡äB¡ä=¡ÏAOBµÄÒÀ¾ÝÊÇ( )

A¡¢SAS B¡¢ASA ¡¡ C¡¢AAS ¡¡ D¡¢SSS

8¡¢Í¶ÖÀһöÆÕͨµÄÁùÃæÌå÷»×Ó£¬ÓÐÏÂÁÐʼþ£º¢ÙÖÀµÃµÄµãÊýÊÇ6;

¢ÚÖÀµÃµÄµãÊýÊÇÆæÊý;¢ÛÖÀµÃµÄµãÊý²»´óÓÚ4;¢ÜÖÀµÃµÄµãÊý²»Ð¡

ÓÚ2.ÕâЩʼþ·¢ÉúµÄ¿ÉÄÜÐÔÓÉ´óµ½Ð¡ÅÅÁÐÕýÈ·µÄÊÇ( )

A.¢Ù¢Ú¢Û¢Ü B.¢Ü¢Û¢Ú¢Ù C.¢Û¢Ü¢Ú¢Ù D.¢Ú¢Û¢Ù¢Ü

9¡¢¼ÆË㠵Ľá¹ûÖв»º¬ ºÍ µÄÏÔòm£¬nµÄֵΪ( ).

A.m=3£¬n=1 B.m=0£¬n=0 C. D.

10¡¢ÏÂÁÐÌõ¼þÖУ¬ÄÜÅж¨¡÷ABC¡Õ¡÷DEFµÄÊÇ ( )

A.AB=DE£¬BC=EF£¬¡ÏA=¡ÏE B.AB=DE£¬BC=EF£¬¡ÏC=¡ÏF

C.¡ÏA=¡ÏE£¬ AB=EF£¬¡ÏB=¡ÏD D.¡ÏA=¡ÏD£¬AB=DE£¬¡ÏB=¡ÏE

¶þ¡¢Ìî¿ÕÌ⣺(±¾Ìâ¹²ÓÐ13СÌ⣬µÚСÌâ3·Ö£¬¹²39·Ö)

11.(-2)0=_________£¬ =___________£¬(-3)-1=___________.

12.ÏÂÁÐ4¸öʼþ£º¢ÙÒìºÅÁ½ÊýÏà¼Ó£¬ºÍΪ¸ºÊý;¢ÚÒìºÅÁ½ÊýÏà¼õ£¬²îΪÕýÊý;¢ÛÒìºÅÁ½ÊýÏà³Ë£¬»ýΪÕýÊý;¢ÜÒìºÅÁ½ÊýÏà³ý£¬ÉÌΪ¸ºÊý¡£Õâ4¸öʼþÖУ¬±ØȻʼþÊÇ________£¬²»¿ÉÄÜʼþÊÇ__________£¬Ëæ»úʼþÊÇ____________.(½«Ê¼þµÄÐòºÅÌîÉϼ´¿É)

13.Èçͼ£¬Ö±Ïßa¡¢b±»Ö±Ïß Ëù½Ø£¬¡Ï1=¡Ï2=35¡ã£¬Ôò¡Ï3+¡Ï4=_________¶È.

14.Èçͼ£¬¡÷ABCÊÇÃæ»ýΪaµÄµÈ±ßÈý½ÇÐΣ¬ADÊÇBC±ßÉϵĸߣ¬µãE¡¢FÊÇADÉϵÄÁ½µã.ÔòͼÖÐÒõÓ°²¿·ÖµÄÃæ»ýΪ___________.

15.ÈçͼAD¡ÍBD£¬AEƽ·Ö¡ÏBAC£¬¡ÏACD=70¡ã£¬¡ÏB=30¡ã.Ôò¡ÏDAEµÄ¶ÈÊýΪ_____________¡ã.

16.Èçͼ£¬ÒÑÖªAB¡ÎCF£¬EÊÇDFµÄÖе㣬ÈôAB=9cm£¬CF=6cm£¬ÔòBD=__________cm.

17.Õý¶à±ßÐεÄÒ»¸öÄڽǺÍËüÏàÁÚµÄÍâ½ÇµÄÒ»°ëµÄºÍΪ160¡ã£¬Ôò´ËÕý¶à±ßÐεıßÊýΪ______________.

18.ÒÑÖª2m=a£¬2n=b£¬Ôò2m+2n-1=____________.

19.ÎÒÃǹ涨һÖÖÔËË㣺 =ad-bc.ÀýÈç =3¡Á6-4¡Á5=-2£¬ =4x+6.°´ÕÕÕâÖÖÔËËã¹æ¶¨£¬µ±x=___________ʱ£¬ =0.

20¡¢Èçͼ£¬¡ÏA+¡ÏABC+¡ÏC+¡ÏD+¡ÏE+¡ÏF=_____.

21¡¢ÓÐÈô¸ÉÕÅÈçͼËùʾµÄÕý·½ÐÎAÀà¡¢BÀ࿨ƬºÍ³¤·½ÐÎCÀ࿨Ƭ£¬Èç¹ûҪƴ³ÉÒ»¸ö

³¤Îª(2a+b)£¬¿íΪ(a+2b)µÄ´ó³¤·½ÐΣ¬ÔòÐèÒªCÀ࿨Ƭ ÕÅ

22¡¢Èçͼ£¬ÒÑÖªµãCÊÇ¡ÏAOBƽ·ÖÏßÉϵĵ㣬µãP¡¢P¡ä·Ö±ðÔÚOA¡¢OBÉÏ£¬Èç¹ûÒªµÃµ½

OP=OP¡ä£¬ÐèÒªÌí¼ÓÒÔÏÂÌõ¼þÖеÄijһ¸ö¼´¿É£º¢Ù¡ÏOCP=¡ÏOCP¡ä;¢Ú¡ÏOPC=¡ÏOP¡äC;

¢ÛPC=P¡äC;¢ÜPP¡ä¡ÍOC.ÇëÄãд³öËùÓпÉÄܵĽá¹ûµÄÐòºÅ£º .

23¡¢Èçͼ(1)£¬°Ñ±ß³¤Îª1µÄµÈ±ßÈý½ÇÐÎÿ±ßÈýµÈ·Ö£¬¾­ÆäÏòÍⳤ³öÒ»¸ö±ß³¤ÎªÔ­À´µÄÈý·ÖÖ®Ò»µÄСµÈ±ßÈý½ÇÐεõ½Í¼(2)£¬³ÆΪһ´Î¡°Éú³¤¡±¡£Ôڵõ½µÄ¶à±ßÐÎÉÏÀàËÆ¡°Éú³¤¡±£¬Ò»¹²Éú³¤n´Î£¬µÃµ½µÄ¶à±ßÐÎÖܳ¤ÊÇ .

Èý¡¢½â´ðÌâ(±¾´óÌâ¹²ÓÐ7СÌ⣬¹²59·Ö)

24¡¢(±¾ÌâÓÐ3СÌ⣬¹²12·Ö)

(1)¼ÆË㣺

(2)ÏÈ»¯¼ò£¬ÔÙÇóÖµ(x-2)2+2(x+2)(x-4)-(x-3)(x+3);ÆäÖÐx=-l

(3)·Ö½âÒòʽ£º(2¡Á3·Ö=6·Ö)¢Ù ¢Ú

25¡¢(±¾Ìâ4·Ö)Èô ÊǶþÔªÒ»´Î·½³Ìax-by=8ºÍax+2by=-4µÄ¹«¹²½â£¬Çó2a-bµÄÖµ.

26¡¢(±¾Ìâ8·Ö)ΪÁ˽âijУÆßÄ꼶ѧÉúÌåÓý²âÊԳɼ¨Çé¿ö£¬ÏÖ´ÓÖÐËæ»ú³éÈ¡²¿·ÖѧÉúµÄÌåÓý³É¼¨Í³¼ÆÈçÏ£¬ÆäÖÐÓÒ²àÉÈÐÎͳ¼ÆͼÖеÄÔ²ÐĽÇaΪ36¡ã.

ÌåÓý³É¼¨Í³¼Æ±í ÌåÓý³É¼¨Í³¼Æͼ

ÌåÓý³É¼¨(·Ö) ÈËÊý(ÈË) °Ù·Ö±È(%)

26 8 16

27 24

28 15

29 m

30

¸ù¾ÝÉÏÃæÌṩµÄÐÅÏ¢£¬»Ø´ðÏÂÁÐÎÊÌ⣺

(1)д³öÑù±¾ÈÝÁ¿¼°mµÄÖµ;

(2)ÒÑÖª¸ÃУÆßÄ꼶¹²ÓÐ500ÃûѧÉú£¬Èç¹ûÌåÓý³É¼¨´ï28·ÖÒÔÉÏ(º¬28·Ö)ΪÓÅÐ㣬Çë¹À¼Æ¸ÃУÆßÄ꼶ѧÉúÌåÓý³É¼¨´ïµ½ÓÅÐãµÄ×ÜÈËÊý.

27¡¢(±¾Ìâ10·Ö)ijͨѶÆ÷²ÄÉ̳¡£¬¼Æ»®ÓÃ60 000Ôª´Ó³§¼Ò¹º½øÈô¸É²¿ÐÂÐÍÊÖ»ú£¬ÒÔÂú×ãÊг¡ÐèÇó£¬ÒÑÖª¸Ã³§¼ÒÉú²úÈýÖÖ²»Í¬ÐͺŵÄÊÖ»ú£¬³ö³§¼Û·Ö±ðΪ£º¼×ÖÖÐͺÅÊÖ»úÿ²¿1800Ôª£¬ÒÒÖÖÐͺÅÊÖ»úÿ²¿600Ôª£¬±ûÖÖÐͺÅÊÖ»úÿ²¿1200Ôª.

(1)ÈôÉ̳¡Í¬Ê±¹º½øijÁ½ÖÖ²»Í¬ÐͺÅÊÖ»ú¹²40²¿£¬²¢½«60 000µØÇ¡ºÃÓÃÍ꣬ÇëÄã°ïÖúÉ̳¡¼ÆËãһϣ¬ÈçºÎ¹ºÂò.

(2)ÈôÉ̳¡Í¬Ê±¹º½øÈýÖÖ²»Í¬ÐͺŵÄÊÖ»ú¹²40²¿£¬²¢½«60 000ԪǡºÃÓÃÍ꣬²¢ÇÒÒªÇóÒÒÖÖÐͺÅÊÖ»úµÄ¹ºÂòÊýÁ¿ÊǼס¢±ûÖÖÐͺÅÊÖ»ú¹ºÂòÊýÁ¿×ܺ͵Ķª£¬ÇëÄãÇó³öÉ̳¡Ã¿ÖÖÐͺÅÊÖ»ú¹ºÂòµÄÊýÁ¿.

28¡¢(±¾Ìâ7·Ö)Èçͼ£¬ÌÝÐÎABCDÖУ¬AD¡ÎBC£¬µãEÊÇCD µÄÖе㣬BEµÄÑÓ³¤ÏßÓëADµÄÑÓ³¤Ïß½»ÓÚµãF.(1)¡÷BCEºÍ¡÷FDEÈ«µÈÂð?Ϊʲô?

(2)Á¬½áBD£¬CF£¬Ôò¡÷BDEºÍ¡÷FCEÈ«µÈÂð?Ϊʲô?

(3)BDÓëCFÓкιØϵ?˵Ã÷ÀíÓÉ.

29¡¢ (±¾Ìâ8·Ö)Èçͼ£¬ÒÑÖª¡ÏAOB=120¡ã£¬OMƽ·Ö¡ÏAOB£¬½«ÕýÈý½ÇÐεÄÒ»¸ö¶¥µãP·ÅÔÚÉäÏßOMÉÏ£¬Á½±ß·Ö±ðÓëDA¡¢OB½»ÓÚµãC¡¢D.

(1)Èçͼ¢ÙÈô±ßPCºÍDA´¹Ö±£¬ÄÇôÏ߶ÎPCºÍPDÏàµÈÂð?Ϊʲô?

(2)Èçͼ¢Ú½«ÕýÈý½ÇÐÎÈÆPµãת¹ýÒ»½Ç¶È£¬ÉèÁ½±ßÓëOA¡¢OB·Ö±ð½»ÓÚC¡ä£¬D¡ä£¬ÄÇôÏ߶ÎPC¡äºÍPD¡äÏàµÈÂð?Ϊʲô?

30¡¢(±¾Ð¡Ìâ10·Ö)

²Ù×÷ʵÑ飺

Èçͼ£¬°ÑµÈÑüÈý½ÇÐÎÑض¥½Çƽ·ÖÏ߶ÔÕÛ²¢Õ¹¿ª£¬·¢ÏÖ±»Õۺ۷ֳɵÄÁ½¸öÈý½ÇÐγÉÖá¶Ô³Æ.

ËùÒÔ¡÷ABD¡Õ¡÷ACD£¬ËùÒÔ¡ÏB=¡ÏC.

¹éÄɽáÂÛ£ºÈç¹ûÒ»¸öÈý½ÇÐÎÓÐÁ½Ìõ±ßÏàµÈ£¬ÄÇôÕâÁ½Ìõ±ßËù¶ÔµÄ½ÇÒ²ÏàµÈ.

¸ù¾ÝÉÏÊöÄÚÈÝ£¬»Ø´ðÏÂÁÐÎÊÌ⣺

˼¿¼ÑéÖ¤£ºÈçͼ(4)£¬ÔÚ¡÷ABCÖУ¬AB=AC.ÊÔ˵Ã÷¡ÏB=¡ÏCµÄÀíÓÉ.

̽¾¿Ó¦ÓãºÈçͼ(5)£¬CB¡ÍAB£¬´¹×ãΪA£¬DA¡ÍAB£¬´¹×ãΪB.EΪABµÄÖе㣬AB=BC£¬CE¡ÍBD.

(1)BEÓëADÊÇ·ñÏàµÈ?Ϊʲô?

(2)СÃ÷ÈÏΪACÊÇÏ߶ÎDEµÄ´¹Ö±Æ½·ÖÏߣ¬ÄãÈÏΪ¶ÔÂð?˵˵ÄãµÄÀíÓÉ¡£

(3)¡ÏDBCÓë¡ÏDCBÏàµÈÂð?ÊÔ˵Ã÷ÀíÓÉ.

ÆßÄ꼶ÊýѧÊî¼Ù×÷Òµ±¾

1.ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ ( )

A. 4µÄËãÊõƽ·½¸ùÊÇ B. µÄƽ·½¸ùÊÇ

C. 27µÄÁ¢·½¸ùÊÇ¡À3 D. µÄƽ·½¸ùÊÇ 3

2.µãA¹ØÓÚ Öá¶Ô³ÆµÄµãΪA¡ä(3£¬ )£¬ÔòµãAµÄ¹ØÓÚÔ­µãµÄ¶Ô³Æµã×ø±êÊÇ

A.( ) B.( ) C.( ) D. ( )

3. ÏÂÁе÷²é·½Ê½£¬ÄãÈÏΪ×îºÏÊʵÄÊÇ

A. Á˽âºã°²ÐÂÇøÿÌìµÄÁ÷¶¯ÈË¿ÚÊý£¬²ÉÓóéÑùµ÷²é·½Ê½

B. ÒªÁ˽âÈ«ÊÐÆßÄ꼶ѧÉúÓ¢Óïµ¥´ÊµÄÕÆÎÕÇé¿ö£¬²ÉÓÃÈ« Ãæµ÷²é·½Ê½

C. ÁË ½â¿óÇø¾ÓÃñÈÕƽ¾ùÓÃË®Á¿£¬²ÉÓÃÈ«Ãæµ÷²é·½Ê½

D. Âÿͽø»ð³µÕ¾ÉϳµÇ° µÄ°²¼ì£¬²ÉÓóéÑùµ÷²é·½Ê½

4.Èçͼ£¬°ÑÒ»¿éº¬ÓÐ45¡ãµÄÖ±½ÇÈý½ÇÐεÄÁ½¸ö¶¥µã·Å ÔÚÖ±³ßµÄ¶Ô±ßÉÏ.Èç¹û¡Ï1=25¡ã£¬ÄÇô¡Ï2µÄ¶ÈÊýÊÇ( )

A. 30¡ã B.25¡ã

C. 20¡ã D.15¡ã

5.Èô·½³Ì×é µÄ½âÊÇ £¬Ôò ¡¢bµÄֵΪ( )

A. B. C. D.

6.Èç¹û¹ØÓÚxµÄ·½³Ì µÄ½â²»ÊǸºÖµ£¬ÄÇôaÓëbµÄ¹ØϵÊÇ( ).

A. B. C.5a=3b D. 5a¡Ý3b

7.Èçͼ£¬AD¡ÎBC¡ÎxÖᣬÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ( ).

A. AÓëDµÄºá×ø±êÏàͬ

B. CÓëDµÄºá×ø±êÏàͬ

C. BÓëCµÄ×Ý×ø±êÏàͬ

D. BÓëDµÄ×Ý×ø±êÏàͬ

8.Èô²»µÈʽ×é Óн⣬ÔòkµÄÈ¡Öµ·¶Î§ÊÇ( ).

A. k<2 B. k¡Ý2 C. k<1 D. 1¡Ük<2

9.¶þÔªÒ»´Î·½³Ì3x-2y=1µÄ²»³¬¹ý10µÄÕýÕûÊý½â¹²ÓÐ( )×é.

A. 1 B. 2 C. 3 D. 4

10.¼×¡¢ÒÒÁ½ÊýºÍΪ21£¬¼×ÊýµÄ2±¶µÈÓÚÒÒÊýµÄ5±¶£¬Çó¼×¡¢ÒÒÁ½Êý.Éè¼×ÊýΪx£¬ÒÒÊýΪy£¬ÔòÏÂÁз½³Ì×éÕýÈ·µÄÊÇ( ).

(A) (B)

(C) (D)

¶þ¡¢ Ìî¿ÕÌâ: ±¾´óÌâ¹²6СÌ⣬ÿÌâ3·Ö£¬¹²18·Ö. Çë°Ñ´ð°¸ÌîÔÚÌâÖкáÏßÉÏ.

11.Èçͼ£¬Ö±ÏßAB£¬CDÏཻÓÚµãO£¬OE¡ÍAB£¬OΪ´¹×㣬¡ÏEOD=30¡ã£¬Ôò¡ÏAOC= .

12.µ±xÂú×ã______ʱ£¬ µÄÖµ²» СÓÚ-4ÇÒСÓÚ8.

13.Èô(x+y-2)2+|4x+3y-7|=0£¬Ôò8x-3yµÄֵΪ .

14.ΪÁËÈôó¼Ò¸ÐÊܶª ÆúËÜÁÏ´ü¶Ô»·¾³µÄÓ°Ï죬ij°à»·±£Ð¡×éµÄÁùÃûͬѧ¼Ç¼ÁË×Ô¼º¼ÒÖÐÒ»ÖÜÄÚ¶ªÆúµÄËÜÁÏ´üµÄÊýÁ¿£¬½á¹ûÈçÏÂ(µ¥Î»£º¸ö)£º33£¬25£¬28£¬26£¬25£¬31.Èç¹û¸Ã°àÓÐ45λѧÉú£¬ÄÇô¸ù¾ÝÌṩµÄÊý¾Ý¹À¼Æ±¾ÖÜÈ«°à¸÷¼Ò¶ªÆúËÜÁÏ´üµÄ×ÜÊýÁ¿Ô¼Îª .

15.ÔÚƽÃæÖ±½Ç×ø±êϵÖУ¬Èç¹ûÒ»¸öµãµÄºá¡¢×Ý×ø±ê¾ùΪÕûÊý£¬ÄÇôÎÒÃÇ³Æ ¸ÃµãÊÇÕûµã¡£ÈôÕûµã ÔÚµÚËÄÏóÏÞ£¬ÔòmµÄֵΪ .

16.¹ØÓÚxµÄ²»µÈʽ×é µÄÕûÊý½â¹²ÓÐ5¸ö£¬ÔòaµÄÈ¡Öµ·¶Î§Îª .

Èý¡¢½â´ðÌâ: ±¾´óÌâ¹²7СÌ⣬¹²52·Ö. ½â´ðӦд³öÎÄ×Ö˵Ã÷¡¢Ö¤Ã÷¹ý³Ì»òÑÝËã²½Öè.

17.(±¾Ð¡ÌâÂú·Ö5·Ö)

½â·½³Ì×飺

18.(±¾Ð¡ÌâÂú·Ö5·Ö)

½â²»µÈʽ×飬²¢°Ñ½â¼¯ÔÚÊýÖáÉϱíʾ³öÀ´

19?(±¾Ð¡ÌâÂú·Ö8·Ö)ÒÑÖª×ø±êƽÃæÄÚµÄÈý¸öµãA(1£¬3)£¬B(3£¬1)£¬O(0£¬0)£¬Çó¡÷ABOµÄÃæ»ý.

20.(±¾Ð¡ÌâÂú·Ö9·Ö)ijУΪÁË¿ªÉèÎäÊõ¡¢Î赸¡¢¼ôÖ½µÈÈýÏî»î¶¯¿Î³ÌÒÔÌáÉýѧÉúµÄÌåÒÕËØÑø£¬Ëæ»ú³éÈ¡Á˲¿·ÖѧÉú¶ÔÕâÈýÏî»î¶¯µÄÐËȤÇé¿ö½øÐÐÁ˵÷²é(ÿÈË´ÓÖÐÖ»ÄÜÑ¡Ò»Ïî)£¬²¢½«µ÷²é½á¹û»æÖƳÉÈçͼÁ½·ùͳ¼Æͼ£¬ÇëÄã½áºÏͼÖÐÐÅÏ¢½â´ðÎÊÌâ.

(1)½«ÌõÐÎͳ¼Æͼ²¹³äÍêÕû;(2)±¾´Î³éÑùµ÷²éµÄÑù±¾ÈÝÁ¿ÊÇ ;(3)ÒÑÖª¸ÃУÓÐ1200ÃûѧÉú£¬ÇëÄã¸ù¾ÝÑù±¾¹À¼ÆȫУѧÉúÖÐϲ»¶¼ôÖ½µÄÈËÊýÊÇ .

21.(±¾Ð¡ÌâÂú·Ö7·Ö)ÒÑÖª4x-3y-6z=0£¬x+2y-7z= 0£¬ÇÒx¡¢y¡¢z¶¼²»ÎªÁ㣬Çó µÄÖµ.

22.(±¾Ð¡ÌâÂú·Ö9·Ö)ijУ×éÖ¯Èô¸ÉÃûѧÉúÍâ³ö²Î¹Û£¬×¡ËÞʱ·¢ÏÖ£¬Èôÿ¸ö·¿¼äס 4È˽«ÓÐ20ÈËÎÞ·¨°²ÅÅ;Èôÿ¸ö·¿¼äס8ÈË£¬ÔòÓÐÒ»¸ö·¿¼äµÄÈ˲»¿ÕÒ²²»Âú.ÎÊÕâÅúѧÉúÓжàÉÙ ÈË?¹²Óм¸¸ö·¿¼ä?

23.(±¾Ð¡ÌâÂú·Ö9·Ö)ΪÁË°ïÖúÅ©´åƶÀ§¼ÒÍ¥×ÓÅ®Íê³É³õ ÖÐѧҵ£¬¹ú¼Ò¸øËûÃÇÃâ·ÑÌṩ½Ì¿ÆÊ飬ϱíÊÇ Ä³ÖÐѧÃâ·ÑÌṩ½Ì¿ÆÊé²¹ÖúµÄ²¿·ÖÇé¿ö£º

Ä꼶

ÏîÄ¿ Æß °Ë ¾Å ºÏ¼Æ

ÿÈËÃâ·Ñ²¹Öú½ð¶î/Ôª 109 94 47.5 ¡ª

ÈËÊý/ÈË 40 120

Ãâ·Ñ²¹Öú½ð¶î/Ôª 1900 10095

Çó»ñµÃÃâ·ÑÌṩ½Ì¿ÆÊé²¹ÖúµÄÆßÄ꼶ºÍ°ËÄ꼶µÄÈËÊý.

ÍƼöÎÄÕÂ

ºÓÄϸ߿¼ÅÅÃû195560×óÓÒÅÅλÀí¿Æ¿ÉÒÔÉÏÄÄЩ´óѧ,¾ßÌåÄÜÉÏʲô´óѧ2024-06-08 12:22:13

¼ªÁÖÍâ¹úÓï´óѧºÍÏæ̶´óѧÐËÏæѧԺÄĸöºÃ ¸½¶Ô±ÈºÍÇø±ðÅÅÃû2024-06-08 12:17:15

½­Î÷¹¤ÉÌÖ°Òµ¼¼ÊõѧԺÔÚºÚÁú½­¸ß¿¼ÀúÄê¼ÈÖÊýÏß(2024½ì²Î¿¼)2024-06-08 12:13:44

¸ÊËà¸ß¿¼ÅÅÃû5480×óÓÒÅÅλÀí¿Æ¿ÉÒÔÉÏÄÄЩ´óѧ,¾ßÌåÄÜÉÏʲô´óѧ2024-06-08 12:10:50

ËÄ´¨ÎÄ»¯ÒÕÊõѧԺºÍÌì½ò³Ç½¨´óѧÄĸöºÃ ¸½¶Ô±ÈºÍÇø±ðÅÅÃû2024-06-08 12:07:58

½­Î÷¸ß¿¼ÅÅÃû71510×óÓÒÅÅλÀí¿Æ¿ÉÒÔÉÏÄÄЩ´óѧ,¾ßÌåÄÜÉÏʲô´óѧ2024-06-08 12:05:17

ÎïÀí½ÌѧÄêÖÕ¹¤×÷×ܽáÎåƪ2023-08-13 10:09:26

³õÖбؿ¼Êýѧ֪ʶµã×ܽá¹éÄÉ2023-08-15 05:06:11

È˽̰æ¾ÅÄ꼶ÎïÀí½Ìѧ×ܽáÓ뷴˼2023-08-25 12:22:39

ÊýѧÀÏʦ½ÌѧÈÎÎñ¹¤×÷×ܽáÎåƪ2023-08-17 15:54:41

³õÖбؿ¼Êýѧ֪ʶµã×ܽá¹éÄÉ2023-08-15 05:06:11

ÊýѧÀÏʦ½ÌѧÈÎÎñ¹¤×÷×ܽáÎåƪ2023-08-17 15:54:41

СѧÊýѧ½Ìѧ¹¤×÷¼Æ»®×ܽáÎåƪ2023-08-16 04:23:20

а汱ʦ´ó°æ¶þÄ꼶ϲáÊýѧ½Ì°¸×îÐÂÄ£°å2023-08-12 05:23:58

×îÐÂÒ»Ä꼶ÊýѧõÎõΰå½Ì°¸Ä£°å2023-08-25 18:57:41

¶þÄ꼶ϲáÊýѧͳ¼Æ½Ì°¸ÎÄ°¸2023-08-22 19:25:47

×îÐÂÎÄÕÂ