cho tam giác ABC vuông tại A, đường trung tuyến AM. Gọi I là trung điểm của AB và D là điểm đối xứng của M qua I a. CMR: AD//BM và tứ giác ADBM là hình thoi b. Gọi E là giao điểm AM và DC. CMR: AE=EM c. Cho BC= 5cm và AC= 4cm. Tính diện tích tam giác ABM

If I were you, I would call the helpline immediately. A: If I put in your shoes, I would call the helpline immediately. B: If I were in your shoes, I would call the helpline immediately. C: If I were your shoes, I would call the helpline immediately. D: If I put me in your shoes, I would call the helpline immediately.

Một bể nước dạng hình hộp chữ nhật có chiều dài 2 m chiều rộng 1,2 m và chiều cao 1,5 m hiện giờ lượng nước chiếm 25% thể tích bể a,Hỏi hiện giờ mực nước cao bao nhiêu xăng - ti - mét b,Người ta mở vòi nước cho chảy vào bể mỗi phút chảy được 36 lít nước. Hỏi sau bao lâu thì nước đầy bể ?

20 Choose the best answer A, B, C or D to complete the sentence. Question 7: Robots in our home will do all the housework for us, and ______will become lazy and inactive. A: therefore B: as C: because D: so 21 Choose the best answer A, B, C or D to complete the sentence. Question 9: Water pollution in the lake has made the fish _______. A: to die B: die C: died D: dying 22 Combine two sentences into a new one, using the words in brackets. Do not change the given words in any way. Write the new sentences on your answer sheet. Question 24. It’s no good being impatient with small children. (should) A: We ought to be patient with small children. B: We must be patient with small children. C: We should be patient with small children. D: We have to be patient with small children. 23 Choose the word whose underlined part is pronounced differently from the others. A: enormous B: precise C: explore D: engine 24 Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits blank (17). Tran Dai Nghia (1913-1997) - The Buddha of Guns Professor, Academician Tran Dai Nghia is a (17) ______ scientist of Vietnamese intellectuals. In 1935, the young man Pham Quang Le, his real name, had a scholarship (18) ______ in France. He tried to take 6 college degrees and certificates of the most famous universities of France. Unlike the others, Pham Quang Le had a clear purpose when studying abroad. He studied the science (19) ______ making weapons to serve the country"s independence. The meeting between him and President Ho Chi Minh in Paris in 1946 changed the life of Pham Quang Le. In 1946, under the requirements of the (20) ______, he was assigned as Head of Military Department by Uncle Ho with the (21) ______ for researching, manufacturing weapons for our soldiers to fight the enemy. Uncle Ho said, “This is the good thing, so from now on your name is Tran Dai Nghia...” A: heroic B: heroine C: heroically D: hero 25 Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Question 16. The famous inventor was not brought up in a well-off family. A: rich B: kind C: wealthy D: poor

Giúp mình giải quyết những bài này ạ

giúp em với điểm kt 1 tiết môn toán của 1 tổ hs được ghi lại ở bảng sau điểm x 5,6,9,10 tần số n 2,5,n,1 biết điểm tb cọng = 6,8 tiềm giá trị n

Một bánh xe ô tô có bán kính là 45dm.Tính chu vi của bánh xe đo với đơn vị đo là mét. Giúp mik với mik còn có 5 phút làm bài online à .

Viết đoạn văn ngắn nói về việc học tập của em,trong đoạn văn có sử dụng câu ghép chỉ giả thiết - kết quả.

Vì sao thời lê sơ lượng noi tì giảm dần

Part 4: Complete each sentence with the correct form of ONE of the two-word verbs below. Write your answer in the numbered box. Each verb is used only once. bring out close down make up to sift through check over lay down go round sit on work out do with 1. Business was so bad that they had to ……………. two factories. 2. Next year, we intend to ……………. several new products. But at the moment, we are still testing them. 3. The operator monitors the pressure by ……………. the readings on these gauges. 4. Calculations which used to take ages can now …………….in a few seconds. 5. You give the computer a command and it will ……………. the data for you until it finds the information you need. 6. People only ……………. him because of his wealth. 7. He ……………. my letter for months, why doesn’t he answer it? 8. This car could ……………. a good polish. 9. There should be enough sweets to …………….. 10. It is quite clearly ……………. that only amateurs can take part. Part 5: Fill each gap in the following sentences with one of the prepositions or particles in the box. Use each word only ONCE and write your answer in the numbered box. (Please note that the given words outnumber the gaps.) after at back through across with forward off out over J!E for 1. I received the news ………….. a kind of naive enthusiasm. 2. He felt nervous before he started the first lecture of his life but he carried it ……very well. 3. My group and yours have arrived ……… the same conclusion quite independently. 4. When he married for the second time, Fred got more than he bargained ………. 5. You can’t sit ……… and do nothing like that while much remains to be done. 6. The favorable weather has put the harvest ……… . 7. We won’t watch that programme if the television is playing ……… again. 8. We made ……… that we had forgotten Jane’s birthday, though it was not true. 9. We had to sit ……… nearly two hours of speeches. 10. We’re both going ……… the same job.