Bài 1: Điền từ thích hợp vào chỗ trống trong các từ sau: vật dẫn, dòng điện, cực dương, cực âm, nguồn điện, điện tích. (1)…………….là dòng chuyển dời có hướng của các (2)……………… Khi một (3)……………………và (4)………………..được nối kín bằng các dây dẫn, thì trong mạch có (5)……………Dòng điện có chiều đi từ (6)………..qua (7)…………..tới (8)…………………..của nguồn. Bài 2: Vẽ một mạch điện gồm bộ nguồn có 4 pin nối tiếp với bóng đèn bằng dây dẫn thông qua công tắc K. K ở trạng thái đóng mạch, vẽ chiều dòng điện trong mạch.

Các anh chị giúp em bài a, b vs E cảm ơn

Giải chi tiết bài này giùm mình với

Tìm giới hạn của lim $\frac{\sqrt[2]{4x+5}$ -3}{\sqrt[3]{5x+3}$ -2 }$

Cho ABC nhọn( AB < AC). Kẻ các đường cao BD, CF cắt nhau tại H. Chứng minh: a/ ABD đồng dạng ACE b/ AEH đồng dạng CEB

VIII. Complete the second sentence so that it has the similar meaning to the first one. 31. They will widen the road to our village next year. The road__________________________________________________________ 32. I think you should go to work by bi ke. Why don't__________________________________________________________ 33. We will plant more trees along this street. More trees___________________________________________________________ 34. He got the first prize at the competition. His mother is very happy. His mother___________________________________________________________ 35. Mr Hung lived in the country when he was a child. Mr Hung used________________________________________________________ 36. They sell these chemicals everywhere in my hometown. These chemicals______________________________________________________ 37. You forgot to turn off the T.V last night, didn't you? You didn't remember___________________________________________________ 38. Is pollution the most serious problem? Pollution is__________________________________________________________ 39. They will build a new school for poor children next month. A new school_________________________________________________________ 40. Some people will interview the new president on TV. The new president____________________________________________________________

Hùng đi xe đạp,10 phút đầu đi được 1 phần 3 quãng đường, 10 phút thứ 2 đi được 1 phần 4 quãng đường 10 phút cuối cùng đi được 2 phần 9 quãng đường. Hỏi sau 30 phút Hùng đi được bao nhiêu phần quãng đường? Giúp mik với ạ.Mik cảm ơn trước ạ mik đang gấp lắm ạ.MOng m.n giúp mik.

Giúp mik câu 1 vs ạ Hứa sẽ vote 5 sao và bình chọn câu trả lời hay nhất và sẽ lúc nài cũng cảm ơn ạ👌👌

1. Will you post the letter for me? -> Do you mind.....................? posting the letter for me ? 2. Shall I drive a car? -> Do you mind if I..........................? drive a car? 3. Can you help me? -> Would you mind................? helping me? 4. Could I borrow your newspaper? -> Would you mind if I.....................................? borrowed your newspaper? 5. Could you reply to my question? -> Would you mind..................................? replying to my question? 6. Could I use your cell phone? -> Would you mind if I............................? used your cell phone? 7. May I ask you a question? -> Would you mind if I................................? asked you a question? 8. Could you help me with the heavy bag? -> Would you mind.................................? helping me with the heavy bag? 9. Can I borrow your book for a minute? Do you mind if I..................................? 10. Could you close the door? -> Would you mind.......................? II. Combine sentences using Present Participle (V-ing) or Past participle (PII) 1. (The man is walking beside my father. He is my uncle.) -> The man………………………………… Walking 2. (The girl is going on a picnic with us. She is my next-door neighbor.) ->The girl………………………… 3. (The tourists are speaking to my sister. They come from Canada.) ->The tourists………………………………………………… 4. (The man is working with my brother. He knows five languages.) ->The man ………………………………………………………… 5. (The student is doing the Math problem on the board. He is the best in this class.) ->The student ………………………… 6. (The books are written by this author. They are all best-sellers.) ->The books…………………………………………………… 7. (The movies are made by Director Steven. They have won some awards.) ->The movies……………………………………… 8. (The men were arrested by the police. They robbed a bank last week.) ->The men…………………………………………………… 9. (The goods are produced by this company. They are of high quality.) ->The goods ………………………………………………… 10. (The movie theater is situated near my house. It often shows good movies) -> The movie theater………………… ai làm đc mình cho bn đó 5 sao cảm ơn mấy bẹn

Xét tam giác ABC, có A =35 độ , B =110 độ ; C =35 độ . Khẳng định nào dưới đây là đúng? AC< AB=BC AC< AB< BC AC>AB>BC AC>AB=BC