15 * (-2 / 3) mũ 2 -7/3 ( lưu ý / là phân số nha )

Quy trình kĩ thuật lập vườn gieo ươm ở đất hoang hay đã qua sử dụng?

Cho hai điện trở R1=10 ôm R2=30 ôm mắc nối tiếp vào hai điểm A-B có hiệu điện thế là 12V. a) Tính điện trở tương đương của A-B b) Tính hiệu điện thế giữa hai đầu mỗi điện trở c mắc thêm 1 bóng đèn '6V-6W' song song với R2 hỏi bóng có sáng bình thường không ? vì sao ?

mâu thuẫn chủ yếu giữa các nước đế quốc thể hiện ở lĩnh vực nào

tình hình Việt Nam sau chiến tranh thế giới thứ nhất là gì? giúp mk vs, mai mk thi rồi

Nêu các đường đi của thuốc hoá học bảo vệ thực vật trong tự nhiên

Giúp mik câu này vs Daniel use to eatan ham Ham are .......................

Cho tam giác ABC có góc A bằng độ ( AB < AC ) . gọi M là trung điểm của BC . Kẻ MH vuông góc với AB tại H và MK vuông góc với AC tại K . a) C/m tứ giác AHMK là hình chữ nhật b) gọi P là điểm đối xứng của M qua H C/m H là trung điểm của AB và APBM là hình thoi c) AC=8cm, Ab = 6 cm tính S APBM ?

1) kể tên các đv có đời sống kí sinh 2) phân tích lợi ích của giun đất 3)kể tên môi trường sống của thân mềm 4)đặc điểm chung của thân mềm 5)dinh dưỡng của tôm 6)tác hại của đất giáp xác 7)đặc điểm ngoài và dinh dưỡng của châu chấu 8)kể tên các đại diện của lớp sâu bọ

Test 5 I. Pronunciation (1pt) A- Choose the word in each group that has the underlined part pronounced differently from the rest: 1. A. invented B. ended C. liked D. defeated 2. A. enough B. young C. cousin D. mountain B- Choose the word in each line that has different stress pattern: 1. A. festival B. lunar C. semester D. language 2. A. enroll B. highlight C. appear D. report II. Choose the correct answer to complete each of the following sentences (3pts) 1. The children are old enough to look after.................. A. ourselves B. herself C. themselves D. himself 2. My sister is.................. a car. A. old to drive B. old drive enough C. old enough to drive D. old enough to drive 3. Excuse me.................. you tell me how to get to the train station? - Sure. A. Might B. Could C. Must D. May 4. Our friends.................. meet us at the airport tonight. A. are B. are going to C. go to D. will 5. .................. is the language that one first learns o speak as a child. A. Habit B. Report card C. Mother tongue D. Semester 6. When I lived in my hometown, I .................. to the beach every weekend, but now I don’t. A. am used to go B. used to going C. didn’t use to D. used to go 7. Tim’s mother is always proud.................. him because he works so hard. A. of B. with C. about D. at 8. She said to him, “Can you meet me at the bus stop?” - She asked him.................. A. to meet me at the bus stop C. to meet her at the bus stop B. meet her at the bus stop D. to meet him at the bus stop 9. “.................. helps you with your homework?” - My brother. A. What B. Which C. When D. Who 10. The art exhibition.................. on 3 May and .................. on 15 July. A. opens - ends B. open - ends C. open - ended D. opens - end 11. He does morning exercises regularly.................. improve his health. A. so that B. so as not to C. in order to D. in order for 12. She likes.................. activities such as walking and camping. A. outdoor B. ondoor C. inside D. indoor III. Reading 1. Read the passage and choose True (T) or False (F) Once, a farmer lived a comfortable life with his family. His chickens laid many eggs which the farmer used to sell to buy food and clothing for his family. One day, he went to collect the eggs and discovered one of the chickens laid a gold egg. He shouted excitedly to his wife: “We’re rich! We’re rich!” His wife wanted more, so her husband decided to cut open all the chicken and find more gold eggs. Unlikely, they couldn’t find any eggs. When he finished, all the chickens were dead. There were no more eggs of any kind for the foolish farmer and his greedy wife. T F 1- Once a farmer lived a comfortable life with his family. 2- The farmer decided to cut open all the chickens and find more gold eggs. 3- They could find some gold eggs. 4- The farmer was so foolish and his wife was so greedy. A. Read the passage carefully and fill in each gap with the correct word from the box (1.5 pts) do plant letter collect participate plans hear save earn can Dear Nam, Thanks for your (1) .................. I’m happy to (2) .................. you’re just won the race. I’m going to (3) .................. in your school program this month. The Y & Y is having some new (4) .................. to help the community. All the members have to (5) .................. glass, paper, and cans and send them for recycling. We do this to help (6) .................. natural resources and (7) some money for the organization. We also (8) .................. some trees and flowers along the sidewalks near our school. We keep the streets clean by collecting and emptying all the garbage. We have a lot of things to do, but they are really interesting. Do you think so? Write to me soon and tell me all your news. Your friend, Linh. IV. Writing 1) She speaks English very well and her sister speaks well, too. (combine “as..................as”) 2) Nga’s mother said to her “Eat more fruit and vegetables.” (Change into reported speech) 3) He is tall. He can play volleyball. (Combine using “enough”) 4) twenty years./for/My dad/for his company/worked/has (Reorder the words into a sentence)