giúp mkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Đồng có 2 đồng vị bền,trong đó 65/29Cu 27%.Nguyên tử khối trung bình của đồng là 63,54.Xác định số khối đồng vị còn lại

Trong văn bản “Cuộc chia tay của những con búp bê”, nhà văn Khánh Hoài đã viết: “Vừa nghe thấy thế, em tôi bất giác run lên bần bật, kinh hoàng đưa cặp mắt tuyệt vọng nhìn tôi. Cặp mắt đen của em lúc này buồn thăm thẳm, hai bờ mi đã sưng mọng lên vì khóc nhiều. Đêm qua, lúc nào chợt tỉnh, tôi cũng nghe tiếng khóc nức nở, tức tưởi của em. Tôi cứ phải cắn chặt môi để khỏi bật lên tiếng khóc to, nhưng nước mắt cứ tuôn ra như suối, ướt đầm cả gối và hai cánh tay áo”. 2. Xác định các từ láy được sử dụng trong đoạn trích trên. Việc sử dụng các từ láy đó có tác dụng như thế nào? 4. Từ nội dung đoạn trích, em hãy viết đoạn văn ngắn thể hiện niềm vui của mình khi được sống trong tình yêu thương của gia đình.

IV.​Complete the sentences with the words in the box. ​basketball​books​chess​films ​music​photography​skating​swimming 1.​I really like ​​​​ - especially in the sea. 2.​I’m interested in ​​​​. My favourite band is T-ara from Korea. 3.​I love ​​​. I go to the cinema every weekend. 4.​I really like ​​​. I don’t play it, but I watch matches on TV. 5.​My hobby is ​​​. I have a new camera. 6.​I love ​​​. My favourite writer is To Hoai. 7.​I really love ​​​​ in the park with my friends. 8.​I like ​​​. I play against my dad. I also play against other people on the Internet.

Dùng các từ dưới đây để đặt câu ( một câu theo nghĩa gốc, một câu theo nghĩa chuyển ) : nhà, đi, ngọt.

Nguyên nhân của sử sụp đổ của CNXH ở LX

205-7(x+5)=100 hãy giúp tôi càn gấp

Viết 1 đoạn văn quy nạp với câu chủ đề nhân vạt ông hai là 2 ông lão nông có 1 tình yêu làng yêu nước tha thiết sâu sắc nặng Mong đc giúp đỡ sj cần gấp

43. It's a pity I can't cook as well as my mom. A. I wish I could cook as well as my mom. B. I wish I can cook as well as my mom. C. I wish I could cook as good as my mom. D. I wish I can cook as better as my mom. 44. Shall we use environmental problem in Ha Noi as a theme of the presentation? A. She suggests use environmental problem in Ha Noi as a theme of the presentation. B. She suggests to use environmental problem in Ha Noi as a theme of the presentation. C. She suggests to using environmental problem in Ha Noi as a theme of the presentation. D. She suggests using environmental problem in Ha Noi as a theme of the presentation. 45. Finish your homework or you can't go out with your friend. A. Unless you finish your homework, you can go out with your friend. B. If you don't finish your homework, you can go out with your friend. C. If you don't finish your homework, you can't go out with your friend. D. If you finish your homework, you can't go out with your friend. 46. It took me 4 hours to read the first chapter of the book. A. I spent 4 hours reading the first chapter of the book. B. I spent 4 hours to read the first chapter of the book. C. I spent 4 hours to reading the first chapter of the book. D. I spent 4 hours read the first chapter of the book. 47. Snowboarding is more dangerous than tennis. A. Tennis is as dangerous as snowboarding. B. Tennis is not as dangerous as snowboarding. C. Tennis is as dangerously as snowboarding. D. Tennis is not as dangerously as snowboarding. 48. Nobody saw her book at the party last night. A. Her book was seen at the party last night. B. Her book was not seen at the party last night. C. Her book were seen at the party last night. D. Her book were not seen at the party last night. 49. Jenny took a taxi, but she still arrived late for the interview. A. In spite of Jenny took a taxi, she still arrived late for the interview. B. Although taking a taxi, Jenny still arrived late for the interview. C. Although Jenny took a taxi, she still arrived late for the interview. D. In spite of took a taxi, Jenny still arrived late for the interview. 50. We didn’t go out because of the heavy rain. A. We didn’t go out because it rained heavily. B. We didn’t go out because of it rained heavily. C. We didn’t go out because it didn’t rain heavily. D. We didn’t go out because it rained heavy.

1. She ( be/ not / use/ get ) up soon ( do) homework. 2. What thay (do) when you ( see ) ? 3. Children ( not / let/ swim ) this pool. It's dangerous 4. You ( not / eat/ should) many candies last evening 5. How long they ( live) here?