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4.(  )While the alien was visiting the museum, the boy  ______the TV station.

A. call            B. ask             C.  called         D.  asked

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3.(  )----In our English study reading is more important than speaking, I think.

 ----- I don’t agree. Speaking is _____ reading.

A. as important as     B. so important as      C. the most important   D. the same as

試題詳情

2.(  )You can’t _____ jeans to the party. If you do so, the teacher won’t let you ___.

A. put on ; in        B. dress ; out         C. have on       D. wear; in

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1.(  )---Can you sing?----Yes I can,_____ I can’t sing very well.

 A. but             B. or           C. so              D. and

試題詳情

3. 解:(1)作圖略;

(2)取點F和畫AF正確(如圖);

  添加的條件可以是:F是CE的中點;

  AF⊥CE;∠CAF=∠EAF等。(選一個即可)

試題詳情

2. 證明:∵AB∥DE,∴∠B=∠DEF,∵AC∥DF,∴∠F=∠ACB,……1分

∵BE=CF,∴BE+EC=CF+EC,即BC=EF,……2分

∴△ABC≌△DEF,∴AB=DE.……3分

試題詳情

1.

解:(1)∵DEBC,

∴∠EDB=∠DBC ···························································· 3分

     (2)∵ABBC, BD是∠ABC的平分線,∴DAC的中點

      ∵DEBC,∴EAB的中點,

DE   

試題詳情

1. 120°  ;2. ;3. 90;4. 25°;5. ;6. 60;7. ;8. 5609. 48°;10.;11. ;12. 35;13. 70;14.   ;15. 600.16.7.5;17. 60;18. 50°;19. 45 o;21. ;22. 90 O   .23. 70°;24. 25;25!螦BD=∠BDE或∠ABE=∠DEC或∠ABE+∠DEC=180°;26. 65;27.40;28.

試題詳情

1.C 2.D 3.C 4.C 5.D 6.C 7.C 8.B 9.C 10.C 11.C 12.C 13.A 14.A 15.B

試題詳情

3.(2008年浙江省衢州)如圖,AB∥CD

(1)用直尺和圓規(guī)作的平分線CP,CP交AB于點E(保留作圖痕跡,不寫作法)

B
 
A
 
(2)在(1)中作出的線段CE上取一點F,連結(jié)AF。要使△ACF≌△AEF,還需要添加一個什么條件?請你寫出這個條件(只要給出一種情況即可;圖中不再增加字母和線段;不要求證明)。

 

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