luyen thi TN so 12

... B luyn thi TN THPT 2009 -2010 GV: Vng L Thu TRờng THPT Mờng So khú Đề luyện thi số 12 làm bài 45 phút Môn: hoá học ( Hoỏ hc v vn mụi trng) Họ và tên: .lớp: 12A HÃy khoanh tròn ... A.Cl 2 B.NO 2 C .SO 2 D.H 2 S Cõu 3: Chn mt húa cht no sau õy thng dựng (r tin) loi b cỏc cht HF, NO 2 , SO 2 trong khớ thi cụng nghip v cation Pb 2+, Cu 2+ trong nc thi cỏc nh mỏy ? ......

Ngày tải lên: 06/07/2014, 20:00

... ________ in asking for bigger salary. She has worked hard. a. reason b. unreasonable c. reasonable d. unreasonably 16.Is this a hotel? - No, it's a ________ house. a. possess b. possession ... b. Missing c. Possess d. Train 22.Are you interested _____ learning English? b. solving c. to solve d. solves 34.English is _______ as one of the most important subjects at high scho...

Ngày tải lên: 21/06/2013, 01:25

... director of this company? a. is b. was c. were d. has been 46.Pick out the word which has the underlined part pronounced differently from the rest a. although b. this c. that d. thing 47.I ... herself ill. a. such hard that b. such hardly that c. so hardly that d. so hard that 17.__________my students are familiar with this kind of school activities. a. Most b. Most of c...

Ngày tải lên: 21/06/2013, 01:25

... halves, the football match ended in a draw, so it went into _________time a. interval b. half c. extra d. any more 17.She is a sort of ambitious person and eager _________. a. to get on b. ... / of b. at / of c. from /to d. in / of 34.The courses of English -Vietnamese Translation were in ________ of Professor Smith. a. duty b. change c. charge d. teaching 35.Pick out the wo...

Ngày tải lên: 21/06/2013, 01:25

... 12 I need some glue to fix my shoes I am afraid that it has been ________. a. out b. over c. spent d. used up 13.More and more people die of food _________ nowadays. a. poison b. poisonous ... people die of food _________ nowadays. a. poison b. poisonous c. poisonment d. poisoning 14.Preserving ________ resources is very important. a. internal b. natural c. underground d. .....

Ngày tải lên: 21/06/2013, 01:25

... -ness c. -ment d. ?less 8. The _____ in the city needs repairing so that some streets will not be flooded in the rainy season. a. air-conditioning system b. drainage system c. traffic system ... trees we preserve d. the least trees we preserve 52.There were some serious forest _________ in the Mekong Delta last dry season. a. burns b. fires c. sacks d. dismisses 53.These pupils...

Ngày tải lên: 21/06/2013, 01:25

... interesting. a. The most important thing is playing football. lưu file văn bản Xem đáp án Trang trước d. off 34.That beautiful girl _______ so much money to buy things thatshe did not really need. ... has the underlined part pronounced differently from the rest a. preserve b. sack c. reason d. poison 32.Most of the rivers flowing through big cities are _______ with chemical waste fr...

Ngày tải lên: 21/06/2013, 01:25

... elevator 46 I'm sorry. It's late. I must go now. Bye bye. -______ a. You are welcome b. Good bye. See you soon. c. Not at all d. Hello 47.I could not say anything to express my ... out the word which has the underlined part pronounced differently from the rest a. this b. thing c. clothing d. together 49.I usually feel _________ when I stay at home _______. a. alone ... u...

Ngày tải lên: 21/06/2013, 01:25

... from / in d. of / for 39.Paper that ______ ink is called blotting-paper. a. absorb b. absorbs c. absorbed d. absorbent 40.Pick out the word which has the underlined part pronounced differently ... focus b. notice c. absorb d. interest 9. "We preserve natural resources. We can use them in the future." means _______. a. We preserve natural resources so that we can use th...

Ngày tải lên: 21/06/2013, 01:25

... mtg 2 x-mtgx-1=0(13). cos(2x 1 +2x 2 )= 1- tg (x + x ) 1+ tg (x +x ) 2 12 2 12 . (14) Với giả thi t x 1 +x 2 ạ 2 +k thì (14) có nghĩa. Mặt khác, tg(x 1 +x 2 )= tgx + tgx 1- tgx tgx 12 12 (15). Với giả thi t cosx ạ 0 thì tgx 1 và tgx 2 có ... mtg 2 x-mtgx-1=0(13). cos(2x 1 +2x 2 )= 1- tg (x + x ) 1+ tg (x +x ) 2 12 2 12 . (14) Với giả thi t x 1 +x 2 ạ 2 +k thì (14) có nghĩa. Mặt...

Ngày tải lên: 26/01/2014, 06:20