Trên tia Ox , lấy 2 điểm A và B sao cho OA = 3cm , OB = 7cm . a) Tính AB ? b, Lấy điểm C sao cho A là trung điểm của OC . Tính BC ?

NEU QUUY TAC VE NHAN 2 P SO K NHAU

Bai2em lam roi xin anh chi giup em voi

Số đối của −4 ___ −5 ​ là:

phân tích 3 động tác lườn, bụng, phối hợp vì là ko có môn thể dục lên em chọn đại môn nhé mn

kể về một người bạn thân 5-8 câu

She (go) ----- to school everyday 2. There (to be) ------ big problems in many parts of the world. 3. A lot of people (go)------ to work by car. 4. Davis never (take) ------the bus to school. 5. He plays volleyball but he (not enjoy)------ it. 6. Most shops usually (open) ------ at 8.00 a.m and (close)------ at 6.00 p.m. 7. School children (wear) ------ uniform on Monday. 8. I want ( buy)----------- some stamps. 9. Ruth (live)-------- with his parents in an apartment. 10. He is writing a postcard and (watch)------- TV at the same time. Exercise 2: 1. I (see) ------- a car accident on this corner yesterday 2. Mr. John (be) -------- principal of our school since last year. 3. My father (not watch) ------- TV every night. 4. I (meet) --------- Arthur three weeks ago. 5. Yesterday the police (report) -------- that they (capture)------- the thief. 6. Someone (steal) -------- my handbag on the bus. 7. Last month I (be) ------ in the hospital for ten days. 8. Don’t call me in the afternoon. I usually (be) ------ away in the afternoon. 9. People (speak)------- English in almost Canada. 10. The dog (wag) -------- his tail whenever he (see) -------- me. Exercise 3: 1. I think he (leave) -------- as soon as he (know)--------- the news 2. He (come) -------- and (see) -------- you soon. 3. My mother (come)------ to stay with us next weekend. 4. Where you (spend) --------- your holidays next summer? 5. Violets (bloom)------- in spring. 6. They (prepare)-------- the Christmas dinner at the moment. 7. When he lived in Manchester, he (work) -------- in a bank. 8. Birds (build) -------- their nests in summer and (fly)--------- to the South in winter. 9. I (lose) --------my key. (can) ---------you help me look for it? 10. My brother (join) -------the army when he (be) ------young.

III. Choose the letter A, B, C or D to complete the passage below Situated in Huong Son Site, Hanoi, Huong Pagoda complex is considered_________ (11) one among centers of Buddhism in Vietnam. Huong Pagoda Festival is a Buddhist festival held annually and lasts three months, _________ (12) the 6th day of Lunar New Year to the 6th day of the third lunar month in the year.Huong Pagoda Festival is very different fromother traditional festivals in Vietnam that recreational activities aren’t central part of the festival. Each year, thousands visitors from all regions in the country and foreign tourists as well _________ (13) to Huong Pagoda at the time of festival. However, their aim is to visit scenic setting of Huong Pagoda (so-called Huong Son Pagoda) and pray for themselves and their familyWhen _________ (14) Huong Pagoda, everyone brings a lavish tray of sacrifice to offer Buddha, who is worshipped at Huong Tich Pagoda. After an incense-offering liturgy, each will eat a piece of their sacrifice in order _________ (15) luck from Buddha. Visiting Huong Pagoda Festival and visiting pagodas in general have become a beautiful custom of Vietnamese people in the beginningof Lunar New Year. Question11 : A.like B. as C. with D. by Question 12: A.from B. to C. of D. on Question 13: A. going B. goes C. went D. go Question14: A. visit B. visits C. visiting D. to visit Question 15: A.to receive B. receive C. receiving D. received

Một bọt khí có thể tích 1,5cm3 được tạo ra từ khoang tàu ngầm đang lặn ở độ sâu 100m dưới mực nước biển. Hỏi khi bọt khí này nổi lên mặt nước thì sẽ có thể tích bao nhiêu? Giả sử nhiệt độ của bọt khí là không đổi, biết khối lượng riêng của nước biển là 103 kg/m3 , áp suất khí quyển là p0 = 105 Pa và g

I ( not see) ............ him since last Christmas