ĐA đề Anh 9 HSG bảng A NA07-08

Ngày tải lên: 16/09/2013, 00:10

... th to ra nhiu loi giao t cú b NST khỏc nhau? b. Cho phộp lai Pt/c: AABBDDee x aabbddee, to ra F 1 , cho F 1 lai vi F 1 to ra F 2 . Khụng lp bng, hóy xỏc nh t l mi loi kiu hỡnh: A- B-ddee, aaB-ddee ... GD&ĐT Nghệ An Kì thi chọn học sinh giỏi tỉnh lớp 12 Năm học 2008 - 20 09 Môn thi: Sinh học 12 THPT- bảng A Thời gian làm bài: 180 phút Cõu 1. (2,5 im) a. Vỡ sao quỏ trỡnh gim phõn din...

Ngày tải lên: 11/06/2013, 01:26

... 2 A 2 ta cã : === 22222 OI OI AB BA AI IA 4 1 ⇒ 4OI = OI 2 = OI + I I 2 = OI + 60 ⇒ OI = 20 cm. XÐt ∆ OIA ®ång d¹ng víi ∆ OI 1 A 1 ta cã : 11111 OI OI AB BA AI IA == ⇒ A 1 B 1 = cmAB OI IIOI AB ... A đồng dạng S H A '''' , AB BA HA IA HS IS == AB = AB. IS HS ' , = AB. IS IHIS ' ' , + Mà SI = SI AB cmAB SI IHSI 30. = + Vậy đờng kính vệt sáng trên tr...

Ngày tải lên: 14/09/2013, 19:10

... blank from 1 to 5 to make a complete passage. There are more phrases than needed. A. tend to search out a final home B. the cause of death C. about sixty-five years D. most probably for the valuable ... why was I learning B. why I was learning C. how long I have been learning D. how long had I been learning 16. OK. I’ll wait for you at the main __________ to the Hung Vuong Plaza. A. a...

Ngày tải lên: 28/11/2013, 05:12

... blank from 1 to 5 to make a complete passage. There are more phrases than needed. A. tend to search out a final home B. the cause of death C. about sixty-five years D. most probably for the valuable ... why was I learning B. why I was learning C. how long I have been learning D. how long had I been learning 16. OK. I’ll wait for you at the main __________ to the Hung Vuong Plaza. A....

Ngày tải lên: 28/11/2013, 05:12

... blank from 1 to 5 to make a complete passage. There are more phrases than needed. A. tend to search out a final home B. the cause of death C. about sixty-five years D. most probably for the valuable ... why was I learning B. why I was learning C. how long I have been learning D. how long had I been learning 16. OK. I’ll wait for you at the main __________ to the Hung Vuong Plaza. A. a...

Ngày tải lên: 28/11/2013, 05:12

... strange...................... A. creation B. creator C. creature D. creative. 38. I like this essay because it ’ s very................ A. imaginative B. imaginary C. imaginable D. imagination 39. Tam has a big .................... ... B. are C.was D.were 15. Each of the boys........ a book now. A. have B.has C.had D.are having 16. Churches and pagodas are places of............... A....

Ngày tải lên: 08/06/2013, 01:25

... Pt/c: cao trắng x thấp đỏ Ab Ab x aB aB G P : Ab aB F 1 : aB Ab 100% cao đỏ 0,5 F 1 x F 1 : aB Ab x aB Ab G F1 : Ab=aB= 2 1 f − AB = ab = 2 f Trang 2/ 3 - Sinh häc 12 THPT - B¶ng A F 2 : cao trắng ... d: AA, Aa: ht trn, aa: ht nhn. 0,25 - Tri khụng hon ton: vớ d: AA: hoa ; Aa: hoa hng, aa: hoa hng 0,25 - ng tri: vớ d: I A I B : nhúm mỏu AB. ( HS cú th ly VD kiu hỡnh khỏc) 0,25 b. Quan h g...

Ngày tải lên: 11/06/2013, 01:26

... would leave Câu 5. Chọn câu diễn đạt cừng ngh a với câu sau: Do you know Trangs address? he asked me. A. He asked me for Trangs address. B. He asked me if I know Trangs address. C. He asked me ... Trangs address. D. He asked me if someone knew Trangs address. Câu 6. Chọn đáp án đúng để hoàn thành câu. What will you do if you the final examination? A. passes B. will pass C. passed D. pass ....

Ngày tải lên: 29/06/2013, 01:27

... Tape transcript. Electrical appliances are so widely used that you are probably familiar with many different kinds. You know that each of those appliances is operated in some ways by electrical ... energy. An energy appliance changes this form of energy into another form we want, such as radiant energy, heat sound or mechanical energy whenever we use an electrical appliance, it must have a...

Ngày tải lên: 18/07/2013, 01:26