mụn+thi+vt+lí+lp+12+thpt+bng+a

... say so D All are correct 5/ Tet occurs in _ A late January or early February B late January C late March D early February 6/ Tuan participates in the town program A active B charity ... there are three official languages They are German, French and Italian As a result, Switzerland has three official names: Schweiz (in German), Suisse (in French), and Svizzera ( in Italia) All national ... night An amateur photographer produced a photo of (27) looked like a large object surrounded by vapor A NASA scientist, Richard Haines, heard about the story and began an (28) He analyzed...

Ngày tải lên: 04/05/2015, 16:07

... years ago People in Genoa, Italy made pants The cloth made in genoa was (28) “jeanos” The pants were called “jeans” In 1850, a saleman in California began selling pants made of canvas His name ... made pants The cloth made in Genoa was (28) “jeanos” The pants were called “jeans” In 1850, a salesman in California began selling pants made of canvas His name was Levi Strauss Because they ... began wearing jeans Young people usually didn’t wear them 35 26 A rich B old C young D poor 27 A start B starts C was starting D started 28 A call B calls C calling D called 29 A famous B popular...

Ngày tải lên: 27/07/2015, 05:08

... ) MC:MA = 1:3 => MA = 3MC, AB = AC = MC Đặt MC = x > => MA = 3x ; AB = 4x Theo địng lý Pitago: AB2 + AC2 = BM2 hay (4x)2 + (3x)2 = 62 ú x = ú MC = ; AB = 5 CK//AB, theo định lý Talét ta có: ... {(0;1); (0;1)} Câu 4: (2,0 điểm) a +b Ta có: Nếu a, b Thật vậy: (a + b)2 4ab ú (a b)2 Dấu = xảy ú a = b Nếu a b a +b > ab ab ( 0,5 đ ) ( 0,5 đ ) áp dụng với a = 1; b = thì: ( 1,0 đ ) 1+ 2 ... xy x+ y a) Tìm ĐKXĐ Q rút gọn b) Chững minh Q c) So sánh Q với Q Câu 2: (6,0 điểm) Cho vuông cân ABC (Â=900) cạnh AC lấy điểm M cho MC:MA = 1:3 Kẻ đờng thằng vuông góc với AC C cắt tia BM K...

Ngày tải lên: 16/12/2015, 16:03

... jeans (27) almost two hundred years ago People in Genoa, Italy made pants The cloth made in Genoa was (28) “jeanos” The pants were called “jeans” In 1850, a salesman in California began ... improve a telegraph repeater He attached a telephone diaphragm to the needle in the telegraph repeater; in this way, he was able to reproduce a recording that could be played back After he made some ... D the article does not say 28 What was Edison working on when he created the phonograph? A A telegraph repeater B A telegraph diaphragm C A telephone repeater D A telephone diaphragm 29 According...

Ngày tải lên: 10/04/2016, 17:00

Ngày tải lên: 08/12/2016, 21:10

... tích a thức thành nhân tử Giải M = ab (a+ b) - bc(b+c) -ac ( c -a) M= ab (a+ b) -bc(b+c ) -ac (c -a) = a2 b + ab2 -b2c -bc2 -ac(c -a) = (a2 b -bc2) + (ab2-b2c) + ac (a- c) =b (a2 -c2) + b2 (a- c) + ac (a- c) = (a- c)[b (a+ c) ... thức: 1 A= a4 + a + ữ+ a + ữ a + ữ a a a a *Bài 3: Cho số a, b R thoả mãn (a - 3) (b - a) + (a - b) (b - 3) + (a -3) (3 - b) + = Tính giá trị biểu thức: (a b) + ( a 3) + (b 3) ... b2 (a- c) + ac (a- c) = (a- c)[b (a+ c) + b2 + ac] = (a- c)[ba+cb+b2+ac] = (a- c)[(ba+b2)+(ac+cb)] = (a- c)[b (a+ b)+c (a+ b) = (a- c) (a+ b)(b+c) Ngoài phơng pháp trên, ta dùng số phơng pháp khác n a, chẳng hạn: Phơng pháp...

Ngày tải lên: 25/06/2013, 01:25

... expected a more hard than b harder than c as hard than d as harder as 75 Small eyes are not large eyes a as attractive as b as attractive than c more attractive as d attractive as Phan III Chon ... through the canal b travelling around Cape Horn c there was no way d all above suggestions are wrong 90 What is the passage about? a Cape Horn b the Atlantic c Pacific Oceans d The Panama Canal Question ... previous passage is divided into two paragraphs in order to contrast: A A comparison and a contrast B A problem and a solution C A statement and an illustration D Specific and general information...

Ngày tải lên: 15/08/2013, 16:04

... phẳng t a độ cho điểm A( -2; 2) đường thẳng d1: y = -2x – a- Giải thích A nằm d1 ? b- Tìm a hàm số y = ax2 có đồ thị (P) qua A c- Viết pt đường thẳng d2 qua A vuông góc với d1 d- Gọi A, B giao điểm ... giao điểm d1 với trục tung Tìm t a độ B, C tính diện tích tam giác ABC 2) Hai ca nô khởi hành lúc từ hai bến sông A B cách 84km, ngược chiều Sau hai chúng gặp đường Biết ca nô thứ đến B sớm ca ... (1,0 điểm) Cho hai số dương a b Chứng minh rằng: Nguyễn Thanh Nam Luyện thi vào 10/ 2009-2010 a+ b ≥ 4ab + ab ĐỀ (Thời gian làm : 150 phút) Bài 1: (3,0 điểm) 1) Rút gọn biểu thức: a/ A = ( 10 − 6)...

Ngày tải lên: 17/08/2013, 15:10

Ngày tải lên: 02/09/2013, 02:10

... người lính vượt qua khó khăn gian khổ : + Giúp họ chia sẻ, cảm thông sâu xa tâm tư, nỗi lòng : "Ruộng nương anh gửi bạn thân cày" "Giếng nước gốc a nhớ người lính" + Cùng chia sẻ gian lao thi u ... người đọc day dứt thêm đau xót cho bao gia đình chiến tranh phải chia l a, yêu bé Thu dành cho cha tình cảm chân thành đầy kiêu hãnh - Khi chia tay, phút giây kịp nhận ông Sáu người cha ảnh, oà ... làng Sen ban đầu viết : "Ba gian nhà trống không hương khói Một giường tre chiếu chẳng lành Một thời gian sau nhà thơ s a lại : Ba gian nhà trống nồm đ a võng Một giường tre chiếu mỏng manh." Hãy...

Ngày tải lên: 28/09/2013, 21:10

... toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang ... 65 97 Trang 11 Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang 12 Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang 13 Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang 14 Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang 15 Hoïc ... Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang Hoïc theâm toaùn ÑT: 0968 64 65 97 Trang 10 Hoïc theâm toaùn ÑT: 0968...

Ngày tải lên: 10/12/2013, 13:32

... on average: tính trung bình behalf of: thay mặt cho board:trên tàu business: công tác duty: trực nhật foot: băng chân fire: cháy the contrary to: tương phản với one's own: loan: vay mượn the market:đang ... the market:đang bán thị trường the phone:đang nói chuyện điện thoại strike: đình công time: the verge of: đứng bên bờ/ s a a diet: ăn kiêng purpose: cố tình the other hand: mặt khác trial: trắc ... without without doubt:không nghi ngờ delay: không trậm trễ, không trì hoãn exception: ngoại lệ fail: không thất bại success: không thành công a word: không lời warning:khhoong cảnh báo "ON" • • •...

Ngày tải lên: 04/01/2014, 09:56

... must accept your answer Câu 2: train/ Ann/ caught/ 12. 30 A The train Ann caught is 12. 30 B The train which Ann caught was the 12. 30 C The train that Ann caught was 12. 30 D The train Ann caught ... D has been Don’t make noise My mother _ with her friends A is talking B was talking C talks D talked Everyone was asleep when the enemy _ A was attacking B attacked C had attacked D attacking ... Mark and Juliet have B does Mark and Juliet have C is Mark and Juliet have D are Mark and Juliet have Hardly _ his wife presents on her birthday A did James given B does James gave C had James...

Ngày tải lên: 12/01/2014, 00:30

... Ekman, the leading researcher in this area, people speak and understand substantially the same “facial language” Studies by Ekman’s group have demonstrated that humans share a set of universal ... For Americans, this might indicate disgust, while in China it can signify surprise Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment ... cracked walls and cheap temporary tables set up along the length of it Each girl has a small area littered with pots of orange make-up, tubes of mascara and long false eyelashes As a place to work,...

Ngày tải lên: 20/03/2014, 04:21

Ngày tải lên: 24/03/2014, 10:21

Ngày tải lên: 24/03/2014, 10:21

Ngày tải lên: 01/04/2014, 11:21

... 39 Margaret/ loved/ have/ holidays/ seaside A Margaret loved having holidays at the seaside B Margaret loved having holidays in the seaside C Margaret loved having holidays at seaside D Margaret ... that I have ever read A a B an C the D X 12 Can anyone give me hand, please because I have just fallen over? A a B an C the D X 13 She always said that when she grew up she wanted to be A ... tỉ a hundred, a thousand, a million, a billion… “Half”: “Half”  Theo sau đơn vị số lượng nguyên: a pound and a half (một pound rưỡi), a gallon and a half(một gallon rưỡi), a liter and a half...

Ngày tải lên: 08/05/2014, 11:14

... Contemporary hunter-gatherers may help us understand our prehistoric ancestors We know from the observation of modern hunter-gatherers in both Africa and Alaska that a society based on hunting and gathering ... community camps in a central location, a smaller party harvests the food within a reasonable distance from the camp When the food in the area has become exhausted, the community moves on to exploit another ... wild animals in the home C teaching animals to a particular job or activity in the home D making wild animals used to living with and working for humans Question 12: According to the passage,...

Ngày tải lên: 22/06/2014, 16:20

... Question 12: A convenient B significant C traditional D fashionable Question 13: A innocent B initial C abnormal D impatient Question 14: A mosquito B elephant C buffalo D dinosaur Question 15: A protect ... paragraph refers to A the situations in which hunter-gatherers can grow some crops B the situations in which hunter-gatherers hardly find anything to eat C the places where plenty of animals ... because all the tickets had been sold out A economical B economics C economy D economic Question 39: There should be an international law against A reforestation B afforestation C deforestation...

Ngày tải lên: 22/06/2014, 16:20