Trên cây có 32 con chim đang đậu ở 2 cành cây.có 4 con từ cành dưới bay lên cành trên và có 6 con bay từ cành trên xuống cành dưới,lúc đó số chim ở cành trên=3/5 số chim ở cành dưới.hỏi lúc đầu cành dưới có bao nhiêu con chim?hỏi lúc đầu cành dưới có.................con chim

Sự thay đổi của nhiệt độ không khí phụ thuộc vào những yếu tố nào? Nêu tên và giải thích các yếu tố đó theo cách hiểu của bản thân.

Chuyện người con gái Nam Xương:3

Bài 2: Cho tam giác ABC có a = 10, b = 11, c = 15. Gọi M là trung điểm BC, tính góc 'AMB?

Giúp em vs Bài địa lớp 7 Thiên nhiên trung và nam mĩ Trang 126 sgk 7

1. The trousers are very large . A fat man can wear suitably the trousers ( using adj + enough ) 2. My boss invited her to come to the designing class as a trainer last month.(passive....) 3. Your bicycle is going to break down but you don't have money to repair ít —> i wish..... 4. They had to cancel the flight because of the bad weather —> since..... 5. Nam gets up early every morning . Hệ isn't late for school .( Combine into one , using " in oder to"

1.Cho tam giác ABC , có A(-3;2), đường thẳng BC có phương trình x-2y=0.Viết phương trình đường thẳng AB, biết B có tung độ âm. 2.Trong mặt phẳng tọa độ Oxy, cho I(-1;3).Viết phương trình đường thẳng d đi qua I và cắt trục hoành tại hai điểm A,B sao cho IA=2IB

Việc lấy tên những danh nhân văn hoá tiêu biểu đặt tên cho tên trường, tên trường chứng tỏ điều gì?

cho tam giác GIác ABC vuông tại A; K là trung điểm của cạnh BC .qua K kẻ đường thẳng vuông góc với AK đường thẳng này cắt các đường thẳng AB và AC lần lượt ở D và E Gọi I là trung điểm của D Chứng minh rằng AI vuông góc với BC giúp mink 60đ

Read the following passage and mark the letter A, B, c or D to indicate the correct answer to each of the questions from 21 to 25. New York has Central Park; London has Hyde Park, while Kuala Lumpur has its own piece of green belt amidst the hustle and bustle of city life. It's an ideal place for a leisurely stroll in a tranquil setting, all without having to leave the city. The Lake Gardens was created by Sir Alfred Venning, who persuaded the ruling government to allow him to turn a swamp land into rambling trails with man-made lakes, spanning 60 hectares. However, as the city expanded, the Lake Gardens reduced in size. However, it is still a sizeable area and boasts of more than just grass and water within its grounds. For example, the gardens incorporate the National Monument, Bird Park, Hibiscus Garden as well as Malaysia's Parliament House. Additionally, Carcosa Seri Negara is on a hilltop overlooking the Lake Gardens. Today, the nineteenth-century British colonial mansion has been converted into a exclusive hotel. 21. According to the passage, what do New York, London and Kuala Lumpur have in common? A. They each have a lake in the city. B. They each have a swamp land in the city. C. They each have a park in the middle of the city. D. They each have a 60-hectare garden in the city. 22. The underlined word "tranquil" in the first paragraph probably means_____ A. ideal B. peaceful C. sizeable D. noisy 23. In the Lake Gardens, you can visit the following spaces EXCEPT_____. A. Hyde Park B. the Bird Park C. the Hibiscus Garden D. the National Monument 24. Over time, the Lake Gardens has become smaller because_____. A. it is swampy B. of development C. of the heat and noise D. it is getting overpopulated 25. The Carcosa Seri Negara is now a_____. A. park B. museum C. mansion D. hotel Read the following passage and mark the letter A, B, c or D to indicate the correct word that best fits each of the numbered blanks from 26 to 30. Until he was ten, young Alexander Fleming attended the nearby Loudoun Moor School. He was then transferred to Darvel School (26)______he attended with his brothers. Alexander learned a good deal about nature during that four mile downhill hike to school and the four-mile uphill return (27)______. He was a quick student and at twelve, the age limit prescribed for Darvel School, he was sent to Kilmarmock Academy. Two years (28)______, he joined his brothers, John and Robert, at the home of his elder brother Thomas, who was to become a successful oculist in London. (29)______, Alexander was forced to leave school for economic reasons. When he was sixteen, he obtained a job in a shipping company. Good fortune, however, was on his side and the side of humanity. In 1901, he (30)______a share in a legacy which made it possible for him to return to school. He decided to study medicine. 26. A. which B. what C. where D. when 27. A. coming B. travel C. trip D. voyage 28. A. after B. later C. following D. next 29. A. Although B. Moreover C. Also D. However 30. A. received B. managed C. succeeded D. included Mark the letter A, B, c or D to indicate the underlined part that needs correction in each of the following questions. 31. National forests including land for animal grazing, as well as wilderness areas with scenic mountains and lakes. A. including B. animal grazing C. wilderness D. scenic 32. The discover of gold in California in 1848 led to the Gold Rush of 1849. A. discover B. in C. led to D. of 33. If farmers keep using pesticides as much as they do now, they would destroy their own living source soon. A. using B. as much as C. would destroy D. living source 34. Mumps are a very common disease which usually affects children. A. are B. very common C. which D. affects 35. Rainwater carries unused chemicals from fields into streams or lakes, where various compounds promote the rate grown of weeds. A. unused chemicals B. streams or lakes C. various compounds D. rate grown