giúp em hai bài này với ạ, em đang cần gấp lắm Em cảm ơn mọi người nhiều

giúp mình với gấp ạ mình cảm ơn nhiều

Nêu những việc em không nên làm ở trên đường sắt

Dùng 100 tấn quặng Fe3O4 để luyện gang (95% Fe, cho biết hàm lượng Fe3O4 trong quặng là 80%, hiệu suất quá trình là 93%. Khối lượng gang thu được là:

V. Fill in each blank with a suitable preposition. (10 points) 1. I am interested________ reading books. 2. She is tired________ living in the city. 3. This restaurant is famous________ Chinese food. 4. The ambulance will be there________ a bout 5 minutes. 5. Bobby started school________ the age of five. 6. I am very keen________ music. 7. Na got up late this morning because her alarm clock didn’t go________. 8. I’m looking forward________ seeing in June. 9. Could I help you________ your bag? 10. They are traveling to the airport________ a bus. VI.Rewrite the following sentences.(10 points) 1.The last time I saw her was in 2005. → I haven't ...................................................... 2.He is writing a book on biology. → A book on biology ................................... 3.Going swimming in the summer is interesting. →It ..................................................................... 4.He was punished by his mother. His mother.................................................. 5.“Don’t play video games too much, Minh"Mr. Ha said. → Mr Ha asked ............................................... 6.Tom is not as tall as Mary. → Mary............................................................... 7.How is the weather? →What’s............................................................. 8.Please turn down the radio for me,” said my father. → My father asked......................................... 9.Many trees are cut down to make paper. → They................................................................ 10.She cleaned the house.Then she went to the market. → After................................................................ helpppppp !

phương pháp thành lập khẩu phần

phân tích tư tưởng yêu nước trong bài "chiếu dời đô " bằng 1 đoạn văn khoảng 15 câu theo cách tổng phân hợp giúp mình nha các bn

Câu 24: Đốt cháy 3,32g hỗn hợp X gồm S, C trong oxi (dư) thu được hỗn hợp Y gồm có 3 khí. Cho Y vào dung dịch nước vôi trong dư thấy xuất hiện 13g kết tủa. Thành phần % khối lượng của S có trong X? Mình cảm ơn ạ🙇‍♂️🙇‍♂️🙇‍♂️

Cho tam giác vuông ABC , góc A = 90 độ, đường cao AH. Chứng minh: a) Tam giác ABC đồng dạng với tam giác HBA b) tam giác ABC đồng dạng với tam giác HAC

III. Complete the sentences, use the correct form of the words in the brackets. (10 points) 1. Would you mind if I (smoke)_______? 2. Surface mail is much (cheap)_______ than airmail. 3. He (live)_______ in this city since 2000. 4. The man (sit)______________________ next to me was very nervous. 5. The children (play)______________________ when It started to rain. 6. We(learn)__________________ French grammar at the moment. 7. It is five days sine you( give)………………. me some information 8. Mr. Hung told me (tell)_______ him the truth. 9. My father ( read) __________________ that book for a week. 10.By the time you (come)_____________ here, You (ask) ____________your father. IV. Underline and correct the mistake in the sentences.(20 points) 1. They didn't let me to go. ………………….. ………………. 2. When John is four, he came to London with his parents. ………………….. ………………. 3. How long have you living here? ………………….. ………………. 4. They are going to school by foot. ………………….. ………………. 5. Do you mind if I smoking in the room? ………………….. ………………. 6. His garden isn't as large than mine. ………………….. ………………. 7. We haven't talked to your sister since a long time. ………………….. ………………. 8. There are much than eighty stores in the mall. ………………….. ………………. 9. The toys keeping in the box are worth 30 dollars. ………………….. ………………. 10. This school is different mine. ………………….. ………………. help meeeee